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  • How To Select The Right Battery For Your Application? Part 3: Common Secondary Battery Chemistries

    Let’s take a look at the most common secondary battery chemistries available.

    1. LITHIUM ION BATTERIES

    Lithium is the lightest metal in the periodic table and has a specific capacity of 3860 mAh/g compared to Zinc at 820 mAh/g (battery capacity is what gives our devices talk time or run time). Lithium also has an electrochemical reduction potential of 3.045 V against 0.76 V for Zinc (i.e a lithium based battery provides a battery voltage of 3 V or greater). The combination of these two properties results in very high energy densities for lithium based batteries.

    While lithium metal based batteries could provide extremely high energy density, when these systems are charged there is the risk of dendritic growth which could penetrate the separator and create a short. We have all heard of the risks of battery explosions and thermal runaway from the resulting temperature rise associated with lithium battery shorting. This risk is alleviated in lithium ion batteries, where the lithium is in a non-metallic form, and lithium ions move back and forth between the anode and cathode. Lithium ion batteries trade-off energy density compared to lithium metal in order to be able to charge in a relatively stable and safe manner (although it is easy to forget this, considering the recent Samsung and other lithium ion battery explosions).

    Owing to their excellent energy density and long cycle life (over 1000 cycles) these rechargeable systems are used in a wide variety of applications such as cell phones, laptops, plug in hybrids and electric vehicles. In the most common lithium ion battery implementation, the anode is typically a graphite sheet, the cathode a lithium cobalt oxide, and the electrolyte a lithium salt in an organic solvent.

    Because lithium is highly reactive towards water, it cannot be used with aqueous electrolytes unlike Zinc. Organic electrolytes are commonly used – but these pale in conductivity compared to aqueous electrolytes like potassium hydroxide, zinc chloride etc, and limit the power output of lithium batteries (in order to get power, low battery resistance and high electrolyte conductivity are required).  Owing to the low conductivity of organic electrolytes, Li-based battery cell designs favor large surface area construction such as coin over button cells, and jellyroll construction over the bobbin type in order to minimize internal resistance and enhance power capability. In other words, cell construction has to be relied on to increase power output for lithium based batteries.

    A high cell voltage of 3.6 Volts or greater means fewer cells are needed for high voltage applications. For example, one Lithium cell can replace three NiCad or NiMH cells which have a cell voltage of 1.2 Volts. Unlike lead acid batteries, these can be deep cycled.

    Disadvantages stem from the fact that lithium is so highly reactive that special safety electronics are required. Lithium ion batteries are also subject to transportation regulations (each airline passenger is restricted to carrying 2g of metallic lithium in primary batteries or 8g of rechargeable Li-ion). Safety issues include the possibility of thermal runaway when overcharged, abused or when used outside of the operating window.   

    2. NICKEL METAL HYDRIDE BATTERIES

    Nickel metal hydride batteries use a nickel oxyhydroxide cathode, a hydrogen absorbing alloy as anode (replaces Cd in the Ni-Cd battery) and an alkaline electrolyte. They have good high power capability, but cannot compete with lithium ion in terms of energy density. This is a 1.2 V battery system. They are resilient to both overcharge and discharge and can be operated between -30 to 75 C. While lithium ion batteries have replaced this system in many consumer applications, nickel metal hydride still finds use in hybrid electric vehicles, where it has seen more than 10 years of use.  The active chemicals are also inherently safer than lithium based systems, and don’t require the use of complex battery management systems.  Nickel metal hydride batteries also compete with lithium ion on cost for applications like portable tools.

     3. LEAD ACID BATTERIES

    Lead acid batteries have low energy densities, but are widely used in automotive starter batteries because of their ability to provide high surge currents inexpensively.  No other battery system provides high power rate capability as cheaply and reliably as lead acid and this system has been in use for 140 years! No wonder this battery system finds use in applications like golf carts, forklifts, UPS vehicles, electric scooters and electric wheelchairs. Owing to their low energy density, you will never see this system used in consumer applications.

    4. NICKEL CADMIUM BATTERIES

    Nickel cadmium batteries have lost significant market share to Li ion and Nickel metal hydride batteries since the 1990s, due to the toxicity of cadmium. They provide a voltage of 1.2 V, and use an alkaline electrolyte. Their ability to provide high discharge rates made portable electronic applications practical when they first came to market.  Advantages of this system include high cycle life, wide temperature range and their relatively high abuse tolerance. However, because of the toxicity of Cadmium, these are being phased out for many consumer applications.

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  • Environmental Problems That Batteries Cause

    The increasing global demand for batteries is largely due to the rapid increase in portable power-consuming products such as cellular phones and video cameras, toys and laptop computers. Each year consumers dispose of billions of batteries, all containing toxic or corrosive materials. Some batteries contain toxic metals such as cadmium and mercury, lead and lithium, which become hazardous waste and pose threats to health and the environment if improperly disposed. Manufacturers and retailers are working continuously to reduce the environmental impact of batteries by producing designs that are more recyclable and contain fewer toxic materials. The global environmental impact of batteries is assessed in terms of four main indicators. These indicators further distinguish the impact of disposable and rechargeable batteries.

    Consumption Of Natural Resources

    Production, transportation and distribution of batteries consumes natural resources, thereby contributing to an accelerating depletion of natural resources. Rechargeable batteries consume less nonrenewable natural resources than disposable batteries because fewer rechargeable batteries are needed to provide the same amount of energy.

    Climate Change And Global Warming

    The increase in the average temperature of the Earth’s surface is caused by an increasing greenhouse gas effect. The manufacture and transportation of batteries emits exhaust and other pollutants into the atmosphere, thereby contributing to the greenhouse effect. Per unit of energy delivered, rechargeable batteries contribute less to global warming than disposable batteries. This is because less greenhouse gas emissions are associated with the manufacture and transportation of rechargeable batteries.

    Photochemical Smog Pollution And Air Acidification

    Exhaust pollutants undergo photochemical reactions which produce toxic chemicals including ozone, other harmful gases and particulate substances. The thermal inversions associated with large cities can lead to a dangerous buildup of photochemical smog, which is known to cause human deaths. Air acidification is the accumulation of acidic substances in atmospheric particles. These particles, deposited by rain, have an impact on soil and ecosystems. Rechargeable batteries contribute less to these atmospheric effects than disposable batteries because they contribute less to air pollution.

    Ecotoxicity And Water Pollution

    Potential toxic risks are associated with emission of battery chemicals into aquatic ecosystems. Improper or careless handling of waste batteries can result in release of corrosive liquids and dissolved metals that are toxic to plants and animals. Improper disposal of batteries in landfill sites can result in the release of toxic substances into groundwater and the environment.

    Recycling

    About 90 percent of lead-acid batteries are now recycled. Reclamation companies send crushed batteries to facilities for reprocessing and manufacture into new products. Nonautomotive lead-based batteries, which are accepted by many automotive companies and waste agencies, are subject to the same recycling processes. Several reclamation companies in the U.S. now process all types of dry-cell batteries, both disposable and rechargeable, including alkaline and carbon-zinc, mercuric oxide and silver oxide, zinc-air and lithium.

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  • How to Save Battery Life on Your Cell Phone

    As modern smartphones continue to become more powerful and feature-rich, extending the battery life on these phones becomes an increasingly pressing issue for a growing majority of users. While it is questionable whether closing open apps actually saves battery life, there are several tactics and strategies that you can employ to help your cellphone battery last as long as possible between charges.

    Lower the Screen Brightness

    The display on your smartphone consumes a lot of battery life and it consumes even more if the screen is brighter. To prolong the battery life on your smartphone, dim the screen brightness as much as is comfortable. It is also helpful to shorten the screen timeout period too. This is the amount of time before the screen turns itself off after a period of inactivity.

    Android

    1. Open the Settings menu.
    2. Select Display.
    3. Tap Brightness level.
    4. Move the slider as far to the left (dim) as is comfortable.
    5. Tap Sleep.
    6. Select a shorter period of time before the screen turns itself off.

    iPhone

    1. Open the Settings app.
    2. Select Display & Brightness.
    3. Drag the slider to the left to dim the screen.
    4. Go back to the main settings menu.
    5. Touch General.
    6. Tap Auto-Lock.
    7. Select the desired timeout period.
    8. Touch General to go back and save.

    More Screen Considerations

    Disabling the auto-brightness or adaptive brightness feature can also help with battery life, as the automatic setting oftentimes leave the screen brighter than is necessary.

    If your smartphone has an AMOLED display, like many Samsung models, opt for a black wallpaper and dark themes too. This is because AMOLED screen technology is such that only illuminated pixels consume power and pure black pixels do not use any power.

    Deactivate Features You're Not Using

    Your smartphone may be performing a series of actions without your explicit knowledge, including accessing features that you may never use or only rarely use. In certain builds of Android, for instance, manufacturers include a number of 'smart gestures' that can be deactivated in the settings to save battery life.

    Similarly, it can be beneficial to turn off the OK Google voice search function. This can be accessed through the Language & input section of the Android settings menu.

    If you are not currently using any Bluetooth devices, like headsets and game controllers, it is worthwhile to turn Bluetooth off. There can also be a slight benefit to deactivating the automatic screen rotation feature.

    Minimize or Disable Background Activity

    Just as you can save battery life by deactivating features you are not using, you can also save a lot of battery life by strategically minimizing or disabling the background activity being performed by the various apps on your smartphone.

    Notifications

    Many of these will need to be configured on an app-by-app basis and the particulars will vary from app to app. A common example would be to reduce unnecessary app notifications. Retrieving notifications requires a connection to the Internet and the transferring of data, which consumes battery life.

    It is understandable to retain notifications for email and messaging apps, but perhaps you can disable notifications from mobile games and social media. These can be accessed through the settings menus in the individual apps.

    Widgets

    In the case of devices powered by Google Android, reducing the number of active homescreen widgets can also save a lot of battery life. A common example would be a weather widget.

    If the widget is updating the weather conditions or forecast every few minutes, even when the phone is inactive, it is consuming battery life unnecessarily. Lengthen the update period or remove the widget altogether. Less active widgets, like a calendar widget, will generally use less battery.

    Upgrade to the Newest Software

    Keeping the software on your smartphone as up-to-date as possible is highly recommended, not only for patching security issues, but also for optimizing the battery and memory usage. This is true both for the operating system, like Windows Phone, iOS or Android, as well as for the individual apps themselves.

    Power Saving Modes

    The newest versions of the software may introduce features to help prolong battery life. For example:

    • Google Android 6.0 Marshmallow comes with what is called Doze Mode. This minimizes the number of background processes when the phone is detected as being inactive.
    • A similar feature was introduced for the iPhone in iOS 9 with Low Power Mode.

    Use Wi-Fi Whenever Possible

    Weak, inconsistent or unreliable reception on your cellphone can wreak havoc on its battery life as your phone continues to search for a signal. This becomes even more problematic when it is trying to transfer large amounts of data over the Internet.

    If you are going to stay in a single location for a period of time, like at home or at work, then connecting to the local Wi-Fi network for your Internet access is generally more efficient in terms of battery consumption. This assumes that the Wi-Fi network (and signal) is consistent, strong and reliable.

    You should also clear out saved Wi-Fi networks you no longer use. This way, your phone isn't constantly searching for networks to which you are unlikely to connect again.

    Change Your Location Settings

    The way that your phone determines your physical location - and how frequently it does this - can also have an impact on battery life.

    Android

    With Android devices, three location setting options are available. To change your phone's setting:

    1. Open the Settings app.
    2. Scroll to the Personal section and select Location.
    3. Tap on Mode.
    4. Select the location mode.
      1. High accuracy: Uses all available resources to determine location
      1. Battery saving: Uses Wi-Fi, Bluetooth or cellular networks
      1. Device only: Uses GPS only

    As its name indicates, 'battery saving' mode consumes the least amount of power. Alternately, you can disable location detection entirely if it is not needed. In the Location settings, you can also define which apps have access to your location.

    iOS

    The iPhone does not have the option to select how the device determines your location, but you can turn Location Services on or off. You can also control which apps have access to the Location Services data.

    1. Open the Settings menu.
    2. Navigate to Privacy.
    3. Tap Location Services.

    Disable Vibration

    There are certainly times when you should be turning your phone to silent mode. However, vibration alerts tend to use more power than ringtones and audible alerts. It can be beneficial to disable vibration and to use low-volume alerts and ringtones instead.

    Disable Haptic Feedback

    Disabling haptic feedback - the vibration function for tactile feedback - can help to save battery life on Android smartphones. Haptic feedback is oftentimes used during typing or interacting with the phone.

    1. Open the Settings app.
    2. Navigate to the Device section.
    3. Select Sound & notification.
    4. Tap Other sounds.
    5. Toggle 'Vibrate on touch.'

    The iPhone currently does not have haptic feedback with its keyboard and it cannot be configured separately from 3D Touch on supporting models.

    Carry a Backup Power Bank

    By utilizing the strategies and tips described above, you can conceivably save a fair amount of battery life on your cellphone. Even so, it can be very helpful to carry around a small USB power bank to provide your phone with a quick charge on the go. These battery packs are very affordable and compact, ensuring that your phone stays topped up and available for use no matter where you are.

  • How To Select The Right Battery For Your Application? Part 2: Common Primary Battery Chemistries

    SOME COMMON PRIMARY BATTERY CHEMISTRIES INCLUDE 

    a) Zinc-carbon batteries have been around for more than 100 years. These are low cost and are available in many shapes and sizes. However, they have lost market share to newer chemistries in the past few decades. They are still used in low drain intermittent use applications like remote controls, flashlights and clocks.  

    b) Alkaline Zinc batteries were invented by Lewis Urry while he was employed by Eveready Battery Company. They provide higher rate capability and improved shelf life compared to Zinc carbon batteries. Urry’s innovations included replacing the Zin can (Figure 1) by powdered Zinc, massively increasing the surface area and improving discharge rate capability. He also replaced the acidic electrolyte with KOH, further decreasing internal resistance and improving rate capability. Urry demonstrated his invention to his boss by racing two toy cars in the factory cafeteria, one with a traditional Zn-carbon D cell, and another with his new battery. The first barely moved, while the second made a few trips along the length of the cafeteria.

    Alkaline zinc cells are used in applications where the battery is used intermittently but needs to work reliably and is exposed to uncontrolled storage conditions, such as smoke alarms and watches.

    c) Zinc silver oxide batteries have high energy density, long shelf life and flat voltage discharge profiles. They are commonly used in portable and miniature electronic applications such as watches, calculators, hearing aids and toys. They use a zinc anode, a silver oxide cathode and a KOH electrolyte when high power capability is required. A NaOH electrolyte is used if longer shelf life is desired. The high cost of silver mostly limits this chemistry to small batteries, except in space and military applications where cost is less important.

    Why zinc silver oxide over lithium ion batteries for miniature electronic applications? The safety issues with pets or kids swallowing small cells that could get lodged in the esophagus presents a nightmare situation for a lithium chemistry. Further owing to the low conductivity of organic electrolytes, lithium chemistry favors larger surface area for high rate capability applications.

    d) Zinc Air Batteries are most commonly used in hearing aid applications owing to their high-energy density, ideal voltage for the application and long shelf life until activation. The battery chemistry uses a Zinc anode, a potassium hydroxide electrolyte and air as the cathode. The battery is activated by removing a sealing tab, and air is introduced into the cell. The use of air instead of traditional cathode materials such as metal oxides allows smaller and lighter batteries to be made. Disadvantages include sensitivity to the environment once batteries are activated – they have to be used up quickly.

    e) Lithium Primary Batteries - Lithium is the lightest metal in the periodic table and has a specific capacity of 3860 mAh/g compared to Zinc at 820 mAh/g. Lithium also has an electrochemical reduction potential of 3.045 V against 0.76 V for Zinc (i.e a lithium based battery provides a battery voltage of 3 V or greater). The combination of these two properties results in very high energy densities for lithium based batteries.

    However, lithium is highly reactive towards water and cannot be used with aqueous electrolytes unlike Zinc. Organic electrolytes are commonly used – but these pale in conductivity compared to aqueous electrolytes like potassium hydroxide, zinc chloride, etc. and limit the power output of lithium batteries (in order to get power, low battery resistance and high electrolyte conductivity are required). On the plus side, the lower freezing points of organic electrolytes allows them to be operated at lower temperature than aqueous electrolyte based battery systems.

    COMMON PRIMARY LITHIUM BATTERIES INCLUDE

    Lithium Manganese dioxide batteries use lithium metal as the anode, and a manganese dioxide cathode. These are available in button cell, and cylindrical formats. Owing to the low conductivity of organic electrolytes, Li-MnO2 cell designs favor large surface area cell construction such as coin over button cells and jellyroll construction over the bobbin type in order to minimize internal resistance and enhance power capability.  Lithium coin cells also are operated at lower currents than Zinc silver oxide cells in order to minimize internal resistance and cell heating.

    Lithium Iron Sulfide batteries provide a higher energy density alternative to alkaline batteries at 1.5 V with superior performance at high drain rates, longer shelf life, better leak resistance, wider operating temperature range, and a reduction in weight. These cells are used in digital cameras and camcorders. Disadvantages include transportation restrictions due to the lithium metal content in the anode and the higher cost (each airline passenger is restricted to carrying 2 g of metallic lithium in primary batteries, or 8 g of rechargeable Li-ion, which amounts to 2 Lithium iron Sulfide cells). These cells have a PTC safety switch, which acts as a current limiter in case the cell overheats.

    Battery cell chemistry dictates many of the cell properties that impact battery performance, thereby making it a key consideration in battery selection. As a follow up to the primary battery cell chemistry we explored in this blog, our next post will delve into secondary battery chemistries.

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    Details

    Compatible Battery Part Number:

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    Compatible Computer Models:

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  • How To Select The Right Battery For Your Application? Part 1: Important Battery Metric Considerations

    The one thing to remember about battery selection is that there is no such thing as a perfect battery that works for every application. Selecting the right battery for your application is about identifying the most important battery metrics and trading these off against others. For instance, if you need a lot of power for your application, cell internal resistance needs to be minimized, and this is often done by increasing electrode surface area. But this also increases inactive components such as current collectors and conductive aid, so energy density is traded off to gain power.

    While your actual design goals on the battery may be lofty, you could have to give up some things in order to gain others when it comes to actual battery performance

    A lead acid battery works great in an automotive starter battery where it provides the required high rate capability. However, with its toxicity and low energy density it would be a terrible choice for a portable electronics application. So, in this 3-part blog series, we will look at how finding the right battery for your application is all about making the right tradeoffs. Part 1 discusses the important considerations when selecting the right battery for a consumer application. These include rechargeability, energy density, power density, shelf life, safety, form factor, cost and flexibility. Part 2 will look at how chemistry affects important battery metrics, and therefore battery selection for your application. In part 3 we will look at common secondary battery chemistries.

    SOME IMPORTANT CONSIDERATIONS IN BATTERY SELECTION ARE:

    1. Primary vs. Secondary – One of the first choices in battery selection is to decide whether the application requires primary (single use) or secondary (rechargeable) batteries. For the most part, this is an easy decision for the designer. Applications with occasional intermittent use (such as a smoke alarm, a toy or a flashlight), and disposable applications in which charging becomes impractical warrant the use of a primary battery. Hearing aids, watches (smartwatches being an exception), greeting cards and pacemakers are good examples. If the battery is to be used continuously and for long stretches of time, such as in a laptop, a cell phone or a smartwatch a rechargeable battery is more suitable.

    Primary batteries have a much lower rate of self-discharge - an attractive feature when charging is not possible or practical before first use. Secondary batteries tend to lose energy at a higher rate. This is less important in most applications because of the ability to recharge.

    2. Energy vs. Power - The runtime of a battery is dictated by the battery capacity expressed in mAh or Ah and is the discharge current that a battery can provide over time.

    When comparing batteries of different chemistry, it is useful to look at the energy content. To obtain the energy content of a battery, multiply the battery capacity in Ah by the voltage to obtain energy in Wh. For instance, a nickel-metal hydride battery with 1.2 V, and a lithium-ion battery with 3.2 V may have the same capacity, but the higher voltage of the lithium-ion would increase the energy.

    The open circuit voltage is commonly used in energy calculations (i.e. battery voltage when not connected to a load). However, both the capacity and energy are both heavily dependent on the drain rate. Theoretical capacity is dictated only by active electrode materials (chemistry) and active mass. Yet, practical batteries achieve only a fraction of the theoretical numbers due to the presence of inactive materials and kinetic limitations, which prevent full use of active materials and buildup of discharge products on the electrodes.

    Battery manufacturers often specify capacity at a given discharge rate, temperature, and cut-off voltage. The specified capacity will depend on all three factors. When comparing manufacturer capacity ratings, make sure you look at drain rates in particular. A battery that appears to have a high capacity on a spec sheet may actually perform poorly if the current drain for the application is higher. For instance, a battery rated at 2 Ah for a 20-hour discharge cannot deliver 2 A for 1 hour, but will only provide a fraction of the capacity.

    Batteries with high power provide rapid discharge capability at high drain rates such as in power tools, or automobile starter battery applications. Typically, high power batteries have low energy densities.

    A good analogy for power versus energy is to think of a bucket with a spout. A larger bucket can hold more water and is akin to a battery with high energy. The opening or spout size from which the water leaves the bucket is akin to power – the higher the power, the higher the drain rate. To increase energy, you would typically increase the battery size (for a given chemistry), but to increase power you decrease internal resistance. Cell construction plays a huge part in obtaining batteries with high power density.

    You should be able to compare theoretical and practical energy densities for different chemistries from battery textbooks. However, because power density is so heavily dependent on battery construction you will rarely find these values listed.

    3. Voltage –  Battery operating voltage is another important consideration and is dictated by the electrode materials used. A useful battery classification here is to consider aqueous or water based batteries versus lithium based chemistries. Lead acid, Zinc carbon and Nickel metal hydride all use water based electrolytes and have nominal voltages ranging from 1.2 to 2 V. Lithium based batteries, on the other hand, use organic electrolytes and have nominal voltages of 3.2 to 4 V (both primary and secondary).

    Many electronic components operate at a minimum voltage of 3 V. The higher operating voltage of lithium based chemistries allows a single cell to be used rather than two or three aqueous based cells in series to make up the desired voltage.

    Another thing to note is that some battery chemistries such as Zinc MnO2 have a sloping discharge curve, while others have a flat profile. This influences the cutoff voltage (Fig 3).  

    4. Temperature range – Battery chemistry dictates the temperature range of the application. For instance, aqueous electrolyte based Zinc-carbon cells cannot be used below 0°C. Alkaline cells also exhibit a sharp decline in capacity at these temperatures, although less than Zinc-carbon. Lithium primary batteries with an organic electrolyte can be operated up to -40°C but with a significant drop in performance. 

    In rechargeable applications, lithium ion batteries can be charged at maximum rate only within a narrow window of about 20° to 45°C. Beyond this temperature range, lower currents/voltages need to be used, resulting in longer charging times. At temperatures below 5° or 10°C, a trickle charge may be required in order to prevent the dreaded lithium dendritic plating problem, which increases the risk of thermal runaway (we have all heard of exploding Lithium based batteries which could happen as a result of overcharging, low or high temperature charging, or short circuiting from contaminants).

    OTHER CONSIDERATIONS INCLUDE:

    5. Shelf life – This refers to how long a battery will sit in a storeroom or on a shelf before it is used. Primary batteries have much longer shelf lives than secondary. However, shelf life is generally more important for primary batteries because secondary batteries have the ability to be recharged. An exception is when recharging is not practical.

    6. Chemistry – Many of the properties listed above are dictated by cell chemistry.  We will discuss commonly available battery chemistries in the next part of this blog series.  

    7. Physical size and shape – Batteries are typically available in the following size formats: button/coin cells, cylindrical cells, prismatic cells, and pouch cells (most of them in standardized formats). 

    8. Cost – There are times when you may need to pass up a battery with better performance characteristics because the application is very cost sensitive. This is especially true for high volume disposable applications.

    9. Transportation, disposal regulations – Transportation of lithium based batteries is regulated. Disposal of certain battery chemistries is also regulated. This may be a consideration for high volume applications. 

    NB116 Battery 31.92Wh 3.8V Pack for Lenovo IdeaPad 100S 100S-11IBY 80R2 100S-80 R2

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    Lenovo IdeaPad 100S-11IBY 80R2
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  • iPhone fever battery is running out quickly - how to fix it

    It is normal for an iPhone to feel a little warmer especially when charging the battery or playing game for hours. However, when you sense that your phone is heating up and its battery drains all of a sudden, then you need to pay attention to this issue. It’s an indication that something is wrong with your device and that thing needs to be fixed before it gets worse.

    How to Tell if My Phone is Overheating

    Heat is a battery’s enemy. Most smartphones are designed with heat dispersion so they don’t overheat easily. Your iPhone is designed to perform well in a wide range of ambient temperatures, with 62° to 72° F (16° to 22° C) as the ideal comfort zone. It’s especially important to avoid exposing your device to ambient temperatures higher than 95° F (35° C). Using an iPhone in very hot conditions can permanently shorten battery life.

    If the interior temperature of the device exceeds the normal operating range, the device will protect itself by attempting to regulate its temperature. If this happens, you might notice these changes:

    • Charging/wireless charging, slow or stops.
    • The display dims or goes black.
    • Cellular radios enter a low-power state. The signal might weaken during this time.
    • The camera flash is temporarily disabled.
    • Apps perform slow.

    When the iPhone starts to overheat it will display a warning message: “Temperature: iPhone needs to cool down.“ An iPhone showing this message might still be able to make emergency calls.

    An overheat smartphone usually freeze, run out of battery fast, shorten its battery life, or even explode. So, take it seriously once your phone is extremely hot. When it comes to phone abnormal heating, it seems that there is potentially dangerous as a smartphone exploding.

    Which Can Cause iPhone Heating up

    There are a couple of basic reasons your iPhone overheat. The first is when misbehaving or damaged components generate more heat than they should. Another is when the cooling system isn’t operating as well as it should be. For example, your phone’s cooling holes may be full of dust, something may be blocking your phone’s vents. You might notice that your device heats up in these situations:

    • Running too many apps that use much battery power.
    • Charging a phone with a fast charger but not its original one.
    • Using a protective case that black or slow down heat dissipation.
    • Phone signal and the network is poor.
    • When iPhone runs many tasks or reanalyzes data, like Phones tagging for faces, places, or keywords after a software update.
    • When you set up your device the first time.
    • When you restore from a backup.

    Here are some of the higher ambient-temperature conditions and activities that might cause the device to change performance and behavior.

    • Leave the device in a car on a hot day.
    • Leaving the device in direct sunlight for an extended period of time.
    • Using certain features in hot conditions or direct sunlight for an extended period of time, such as GPS tracking or navigation in a car, play a graphics-intensive game, or using augmented-reality apps.

    Why apps will use a lot of the battery

    There are several different reasons why apps use a lot of battery. For example, the app is being constantly used or used in the background. It could be downloading content, uploading content, using location services or streaming audio. The app is being used in an area with poor cellular service. When this happens, it puts more work on the battery and drains it quickly.

    Additionally, the app is not working properly. For example, the app can be constantly crashing. The app is using AirPlay. When the app is streaming audio to AirPlay speakers, or video to an Apple TV. It will take a lot of power consumption.

    How to avoid your phone overheating

    ) from overheating:

    • Keep your applications up-to-date.
    • Uninstall some unnecessary apps.
    • Keep your phone away from your other gadgets.
    • Don’t leave your phone in a hot environment.
    • Charge phone with its original charger.

    How to troubleshoot an abnormal heating phone

    Once you sense your phone heating up, power off your phone, and then remove the protective case to cool it down. Don’t plug it into a power source until the temperature dropped down. If the phone getting very hot and not cooling down, then take it straight to an Apple Store and have the experts inspect it. If your iPhone hasn’t passed the battery test, Apple will replace your battery free if you’re under warranty. Otherwise, you need to pay for this service.

    Fast Wireless Charger Qi Wireless Charging Pad Stand for iPhoneX 8 / 8 Plus / X Samsung Galaxy Note 8

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  • iPhone fever battery is running out quickly - how to fix it

    It is normal for an iPhone to feel a little warmer especially when charging the battery or playing game for hours. However, when you sense that your phone is heating up and its battery drains all of a sudden, then you need to pay attention to this issue. It’s an indication that something is wrong with your device and that thing needs to be fixed before it gets worse.

    How to Tell if My Phone is Overheating

    Heat is a battery’s enemy. Most smartphones are designed with heat dispersion so they don’t overheat easily. Your iPhone is designed to perform well in a wide range of ambient temperatures, with 62° to 72° F (16° to 22° C) as the ideal comfort zone. It’s especially important to avoid exposing your device to ambient temperatures higher than 95° F (35° C). Using an iPhone in very hot conditions can permanently shorten battery life.

    If the interior temperature of the device exceeds the normal operating range, the device will protect itself by attempting to regulate its temperature. If this happens, you might notice these changes:

    • Charging/wireless charging, slow or stops.
    • The display dims or goes black.
    • Cellular radios enter a low-power state. The signal might weaken during this time.
    • The camera flash is temporarily disabled.
    • Apps perform slow.

    When the iPhone starts to overheat it will display a warning message: “Temperature: iPhone needs to cool down.“ An iPhone showing this message might still be able to make emergency calls.

    An overheat smartphone usually freeze, run out of battery fast, shorten its battery life, or even explode. So, take it seriously once your phone is extremely hot. When it comes to phone abnormal heating, it seems that there is potentially dangerous as a smartphone exploding.

    Which Can Cause iPhone Heating up

    There are a couple of basic reasons your iPhone overheat. The first is when misbehaving or damaged components generate more heat than they should. Another is when the cooling system isn’t operating as well as it should be. For example, your phone’s cooling holes may be full of dust, something may be blocking your phone’s vents. You might notice that your device heats up in these situations:

    • Running too many apps that use much battery power.
    • Charging a phone with a fast charger but not its original one.
    • Using a protective case that black or slow down heat dissipation.
    • Phone signal and the network is poor.
    • When iPhone runs many tasks or reanalyzes data, like Phones tagging for faces, places, or keywords after a software update.
    • When you set up your device the first time.
    • When you restore from a backup.

    Here are some of the higher ambient-temperature conditions and activities that might cause the device to change performance and behavior.

    • Leave the device in a car on a hot day.
    • Leaving the device in direct sunlight for an extended period of time.
    • Using certain features in hot conditions or direct sunlight for an extended period of time, such as GPS tracking or navigation in a car, play a graphics-intensive game, or using augmented-reality apps.
    Why apps will use a lot of the battery

    There are several different reasons why apps use a lot of battery. For example, the app is being constantly used or used in the background. It could be downloading content, uploading content, using location services or streaming audio. The app is being used in an area with poor cellular service. When this happens, it puts more work on the battery and drains it quickly.

    Additionally, the app is not working properly. For example, the app can be constantly crashing. The app is using AirPlay. When the app is streaming audio to AirPlay speakers, or video to an Apple TV. It will take a lot of power consumption.

    How to avoid your phone overheating

    Here are some tips we’ve compiled to help prevent your iPhone(IPHONE ACCESSORIES) from overheating:

    • Keep your applications up-to-date.
    • Uninstall some unnecessary apps.
    • Keep your phone away from your other gadgets.
    • Don’t leave your phone in a hot environment.
    • Charge phone with its original charger.

    How to troubleshoot an abnormal heating phone

    Once you sense your phone heating up, power off your phone, and then remove the protective case to cool it down. Don’t plug it into a power source until the temperature dropped down. If the phone getting very hot and not cooling down, then take it straight to an Apple Store and have the experts inspect it. If your iPhone hasn’t passed the battery test, Apple will replace your battery free if you’re under warranty. Otherwise, you need to pay for this service.

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