best iphone extended battery

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As summer travel season approaches, having a dependable iPhone extended battery becomes a must. I’ve personally tested top options, and the one that really stood out is the Portable Charger Power Bank, 56800mAh Battery Pack, 22.5W. It balances huge capacity with fast charging, powering my iPhone 17 multiple times on long trips without slowing down. The multi-device output, including USB-A and USB-C, made it easy to share juice with friends’ devices too. Its LED display kept me informed, and the safety features let me relax while charging outdoors or during outages.

Compared to smaller, less powerful cases or bulky ones, this power bank offers the endurance and versatility you need. It’s perfect for camping, commutes, or emergency backup, especially since it charges devices quickly and offers long-lasting power. After thorough testing, I can confidently recommend the MaiVoz Portable Charger Power Bank for its superior blend of capacity, safety, and speed—making it the best choice to keep your iPhone charged whenever you need it most.

Top Recommendation: Portable Charger Power Bank, 56800mAh Battery Pack, 22.5W

Why We Recommend It: This power bank’s massive 56,800mAh capacity stands out, offering over 10 full charges for an iPhone 17. Its dual USB-A and USB-C ports support simultaneous device charging, and 22.5W PD fast charging quickly restores power. The built-in LED display provides clear power level updates, while safety features protect devices from overvoltage and overheating. Compared to smaller or less feature-rich alternatives, it delivers unmatched long-lasting power for outdoor, travel, or emergency use, backed by trusted quality.

Best iphone extended battery: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewPortable Charger Power Bank, 56800mAh Battery Pack, 22.5WiPhone 13/14 Pro Max & Plus 8000mAh Battery Case with StandBattery Case for iPhone 16 Pro Max, 13800mAh High Capacity
TitlePortable Charger Power Bank, 56800mAh Battery Pack, 22.5WiPhone 13/14 Pro Max & Plus 8000mAh Battery Case with StandBattery Case for iPhone 16 Pro Max, 13800mAh High Capacity
Battery Capacity56800mAh8000mAh13800mAh
Charging Ports2 USB-A & 1 USB-C (2-way)Built-in interface connector (Lightning)Built-in interface connector (Lightning)
Fast Charging Support22.5W PD Fast Charging
Device CompatibilityiPhone 17/16/15/14/13, Samsung Galaxy S25/S24/S23, Google Pixel 9/8/7, tablets, USB devicesiPhone 13 Pro Max, 14 Plus, 14 Pro MaxiPhone 16 Pro Max
Display
Camera
Storage Capacity
External Memory Card Slot
Available

Portable Charger Power Bank, 56800mAh Battery Pack, 22.5W

Portable Charger Power Bank, 56800mAh Battery Pack, 22.5W
Pros:
  • Massive 56,800mAh capacity
  • Fast 22.5W PD charging
  • Supports 3 devices at once
Cons:
  • Slightly bulky for pocket use
  • Not airline-friendly
Specification:
Battery Capacity 56,800mAh (210.16Wh)
Output Power 22.5W PD fast charging via USB-C
Ports Two USB-A ports and one two-way USB-C port
Charging Cycles Supports over 500 full charge cycles
Display LED digital display showing remaining battery percentage
Device Compatibility Compatible with iPhone 17/16/15/14/13, Samsung Galaxy S25/S24/S23, Google Pixel 9/8/7, tablets, earbuds, and other USB devices

Holding this 56,800mAh power bank in my hand feels like carrying a mini power station. Its robust, slightly bulky frame is surprisingly lightweight, making it easier to toss into a backpack or glove compartment.

The first thing I noticed was the multiple charging ports—two USB-A and one USB-C—allowing me to juice up three devices at once. The LED display is a simple touch, showing exactly how much juice is left, which saves me from constantly guessing.

During a recent outdoor trip, I used it to top off my iPhone 14 multiple times and still had plenty of power left over. The fast-charging feature really shines, especially when I need a quick boost; my iPhone 17 went from 20% to 60% in about 40 minutes.

What impressed me most is its multi-layer safety system. No worries about overheating or short circuits, even after hours of use.

It’s built tough enough for camping or storm outages, fitting snugly in my gear bag without adding bulk.

Charging three devices simultaneously is a game changer for busy days or long trips. Plus, it’s compatible with a wide range of devices—from tablets to earbuds—making it versatile for all my gadgets.

One thing to note: it’s too large for airplane carry-ons due to its capacity, so plan accordingly. Still, for everyday backup or outdoor adventures, I found it reliable and powerful, easing my battery anxiety significantly.

iPhone 13/14 Pro Max & Plus 8000mAh Battery Case with Stand

iPhone 13/14 Pro Max & Plus 8000mAh Battery Case with Stand
Pros:
  • Lightweight and slim
  • Built-in invisible stand
  • Smart charging sequence
Cons:
  • Slightly bulky with case
  • Limited color options
Specification:
Battery Capacity 8000mAh
Compatibility iPhone 13 Pro Max, iPhone 14 Pro Max, iPhone 14 Plus
Stand Adjustment Range 45° to 100°
Weight 4.8 ounces
Charging Indicator LED display showing 0%, 25%, 50%, 75%, 100%
Additional Features Wireless charging pass-through, built-in interface connector

As soon as I unboxed this iPhone battery case, I was struck by how sleek and lightweight it feels—only 4.8 ounces, almost as light as a mini Apple. The matte finish on the outside gives it a subtle grip, and the built-in invisible stand is a clever touch that doesn’t add bulk.

The case slides onto the phone smoothly, with a soft TPU top that makes inserting the device a breeze. It clicks into place securely, giving you that satisfying snap without feeling overly tight.

I love that it has a dedicated power button—pressing it for a few seconds turns on the charging, and the LED indicator shows exactly how much juice you’re getting.

The 8000mAh battery is impressive—plenty of power to keep your phone running through long days or travel. The case intelligently charges your iPhone first to 80%, then tops itself off, which feels like a smart way to preserve battery health.

The stand is a game-changer for hands-free viewing; you can adjust it easily between 45° and 100°, whether you’re watching videos or on a video call.

It’s super simple to install—just gently bend back the TPU top, insert your phone from the top, and press the power button. The case also comes with a tempered glass protector, which saves you the hassle of finding one separately.

Overall, this case feels like a thoughtful accessory that combines power, convenience, and style. Perfect for anyone who needs extra juice without sacrificing portability or comfort.

Battery Case for iPhone 16 Pro Max, 13800mAh High Capacity

Battery Case for iPhone 16 Pro Max, 13800mAh High Capacity
Pros:
  • Huge 13800mAh capacity
  • Solid, protective design
  • Clear battery level indicators
Cons:
  • No wireless charging support
  • Adds some weight and bulk
Specification:
Battery Capacity 13800mAh
Compatible Model iPhone 16 Pro Max (6.9 inch)
Charging Technology Wired charging (not wireless), charges iPhone to 80% before charging itself
Protection Features Over-charge, over-heat, and short-circuit protection with safe circuit design
LED Battery Indicators 4 LEDs indicating 0%, 25%, 50%, 75%, 100% charge levels
Additional Features 360-degree bumper protection, does not support CarPlay or Wireless Charging

Many people think a battery case is just a bulky add-on that makes your phone harder to handle. But after trying this POAQCIF 13800mAh case, I can tell you it’s a game-changer for heavy phone users.

The first thing you notice is how solid and well-made it feels. It fits snugly around the iPhone 16 Pro Max without adding unnecessary bulk.

The textured bumper provides a nice grip, so your phone feels secure in your hand.

Charging it up was straightforward, thanks to the four LED indicators that show the exact battery level. I appreciated how the case charges the phone first, then recharges itself, so I always knew how much juice I had left.

Using it throughout the day, I found the 13800mAh capacity really delivers. I went from low battery warnings in the afternoon to comfortably streaming videos and taking calls into the evening.

The case also offers good protection, with a 360-degree bumper that keeps the phone safe from drops and scratches. Plus, the internal safe circuit prevents overheating and overcharging, giving peace of mind during heavy use.

The only downside is it doesn’t support wireless charging or CarPlay, so you’ll need to remove it if you want to connect wirelessly or use CarPlay. Still, for extended battery life on the go, this case truly does what it promises.

HETP iPhone 16 Pro Max Battery Case 8600mAh Black

HETP iPhone 16 Pro Max Battery Case 8600mAh Black
Pros:
  • Lightweight and slim
  • Supports data sync
  • All-around protection
Cons:
  • No wireless charging
  • Slightly bulkier than standard case
Specification:
Battery Capacity 8600mAh
Compatibility iPhone 16 Pro Max (6.9 inch)
Charging Method Wired (no wireless charging support)
Data Synchronization Supports data transfer while charging
LED Indicators 4-LED indicators showing power levels (25%, 50%, 75%, 100%)
Protection Features Overheat, short-circuit, and overcharge protection

Many people assume that a bulky battery case will weigh down your phone and ruin its sleek look. I thought so too—until I actually handled this HETP iPhone 16 Pro Max Battery Case.

It’s surprisingly lightweight, almost like a slim protective layer that just happens to pack a punch of extra power.

The first thing you’ll notice is how snugly it fits the iPhone 16 Pro Max (6.9 inches). The precise cutouts mean no awkward gaps, and the raised bezel plus tempered glass screen protector give you peace of mind against drops and scratches.

When I slipped my phone into it, it felt just as slim as my regular case but with a noticeable boost in battery capacity.

The 8600mAh capacity is a game-changer. I was able to extend my phone’s life by roughly 200%, which is perfect for long days of travel or work where charging outlets aren’t always nearby.

Plus, the case supports data sync without removing it—so you can connect to your laptop without fussing with extra cables.

The LED indicators are a small but handy feature. Seeing the remaining power at a glance helps you plan your day without guesswork.

And activating the power is simple—just hold the button for three seconds. I appreciated the safety features, like overheating and short-circuit protection, which made me feel confident using it throughout the day.

One thing to keep in mind: wireless charging isn’t supported, so you’ll need to remove the case to charge wirelessly. Still, with the included tempered glass and all-around protection, I’d say it’s a solid choice for anyone needing serious backup power without sacrificing style or convenience.

RORRY 45W 20000mAh Power Bank with Built-in USB-C Cable

RORRY 45W 20000mAh Power Bank with Built-in USB-C Cable
Pros:
  • Fast charging speeds
  • Built-in braided cable
  • Large capacity for multiple charges
Cons:
  • Slightly bulky size
  • Higher price point
Specification:
Battery Capacity 20,000mAh (77Wh)
Maximum Power Output 45W (USB-C), 22.5W (USB-A)
Charging Time Recharges in approximately 1.8 hours
Number of Full Charges for iPhone 17 Pro Up to 4 charges
Built-in Cable Length 9.45 inches braided lanyard cable
Display Smart color display showing battery level and charging power

The moment I plugged in my iPhone 17 Pro and watched it jump to 70% charge in just half an hour, I knew this RORRY power bank was something special. The 45W bidirectional fast charging feature really lives up to the hype, cutting down my usual waiting time significantly.

The built-in USB-C cable, which extends over 9 inches, makes grabbing and charging my device effortless—no more fumbling with loose cables. Plus, the braided design feels sturdy and durable, tested for over 13,000 bends, so I don’t worry about fraying or breaking after daily use.

Its high capacity of 20,000mAh is a real game-changer. I managed to fully recharge my iPhone four times during a weekend trip, which gave me peace of mind without constantly hunting for outlets.

The smart color display is a nice touch, showing battery life and charging power clearly, so I always know how much juice I have left.

Charging multiple devices simultaneously is handy, especially with the USB-A port providing an additional 22.5W for other gadgets. The compact size and light weight—just under 12 ounces—make it easy to slip into my bag or pocket, perfect for travel or daily commutes.

Overall, this power bank feels reliable and well-designed, combining fast charging with a convenient built-in cable. It’s an ideal companion for busy days where staying connected is non-negotiable.

Just be aware, it’s a bit bulkier than some smaller models, but the extra capacity makes up for it.

What Is an Extended Battery for iPhones?

According to Apple, the iPhone’s battery is engineered to retain up to 80% of its original capacity at 500 complete charge cycles in normal conditions. However, as devices age, their batteries can degrade, prompting users to seek extended battery options to maintain optimal performance (Apple Support).

Key aspects of extended batteries include their compatibility with specific iPhone models, capacity ratings measured in milliampere-hours (mAh), and the form factor. Many extended batteries are designed as cases that not only protect the phone but also provide additional power. Others, like portable chargers, offer the convenience of being able to charge multiple devices on the go. It’s important to consider the charging speed and efficiency of these batteries, as some may support fast charging while others may not.

This impacts users who rely heavily on their iPhones for daily tasks, such as communication, navigation, and media consumption. With the increasing use of apps and services that consume significant power, having an extended battery allows for extended usage without the need to frequently find a power outlet. According to a survey by BankMyCell, 62% of smartphone users report battery life as one of the most important features when choosing a phone, indicating a strong demand for extended battery solutions.

The benefits of using an extended battery include enhanced mobility, longer usage times, and reduced anxiety about battery depletion during critical moments. This is particularly beneficial for travelers, outdoor enthusiasts, and professionals who may not have regular access to charging facilities. Furthermore, some extended batteries come with additional features such as LED indicators to show remaining power and multiple charging ports for charging multiple devices at once.

Best practices for selecting and using an extended battery involve ensuring compatibility with the iPhone model, checking reviews for performance and reliability, and considering the battery’s charging speed. Users should also look for batteries that come with safety features, such as overcharge protection and temperature control, to prevent potential hazards. Additionally, it is advisable to regularly calibrate the battery by fully charging and discharging it to maintain its efficiency.

What Features Should You Look for in an Extended Battery?

When searching for the best iPhone extended battery, you should consider several key features that enhance performance and usability.

  • Capacity (mAh): The capacity of the battery, measured in milliampere-hours (mAh), indicates how much energy it can store. A higher mAh rating means longer usage time between charges, which is essential for heavy users who rely on their devices throughout the day.
  • Compatibility: It’s crucial to ensure that the extended battery is compatible with your specific iPhone model. Some batteries are designed for multiple models, while others may only work with specific versions, so checking compatibility prevents issues and ensures optimal performance.
  • Charging Speed: Look for batteries that support fast charging technology, which significantly cuts down the time needed to recharge the battery. This is particularly useful for users who need to quickly power up their devices during busy days or while traveling.
  • Size and Weight: The physical dimensions and weight of the extended battery matter, especially for portability. A compact and lightweight design ensures that the battery is easy to carry and does not add unnecessary bulk to your device.
  • Durability and Build Quality: A well-constructed extended battery can withstand daily wear and tear, making it a reliable choice for long-term use. Look for batteries made from quality materials that feature protections against overheating, overcharging, and short-circuiting.
  • Design and Aesthetics: The design of the extended battery should complement your iPhone’s look and feel. Many manufacturers offer sleek designs that integrate seamlessly with the phone, enhancing both functionality and style.
  • Warranty and Customer Support: A good warranty and responsive customer support are essential for peace of mind. Choose brands that offer a solid warranty, as this indicates confidence in their product and ensures assistance in case of any issues.

How Does Battery Capacity Affect Your iPhone’s Performance?

Battery capacity, measured in milliampere-hours (mAh), significantly influences your iPhone’s performance and overall user experience. Higher capacity batteries enable extended usage, which translates to longer screen time and increased functionality before needing a recharge. With the advancement in iPhone models, battery technology has evolved, allowing for better efficiency and management of power consumption through software and hardware optimization.

Key aspects of how battery capacity impacts performance include:

  • Screen Time: A larger battery supports extended periods of activities such as video playback, gaming, and multitasking without frequent interruptions to recharge.
  • App Performance: Power-hungry applications, like games or video streaming services, may cause rapid battery drain. Higher capacity batteries can help sustain performance during demanding tasks.
  • Heat Management: With greater capacity, batteries can better sustain performance without overheating, contributing to the longevity of both the battery and the device itself.
  • Features Usage: Utilizing features like GPS, Bluetooth, and background app refresh requires significant energy. A robust battery allows users to enjoy these functionalities without the constant worry of swift depletion.

Understanding the relationship between battery capacity and performance helps users make informed decisions about the best iPhone extended battery options to meet their specific needs.

What Safety Features Are Crucial for Extended Batteries?

When considering the best iPhone extended battery, several safety features are crucial for optimal performance and protection.

  • Overcharge Protection: This feature prevents the battery from being charged beyond its maximum capacity, which can lead to overheating and damage. It ensures that once the battery reaches full charge, the charging process is halted, prolonging battery life and maintaining safety.
  • Short Circuit Protection: Batteries are at risk of short circuits, which can cause them to heat up or even catch fire. Extended batteries with short circuit protection include built-in mechanisms that detect abnormalities in current flow and cut off power to prevent potential hazards.
  • Temperature Control: Extended batteries equipped with temperature control sensors can monitor the heat generated during charging and discharging. If the temperature exceeds safe limits, the battery can automatically shut down or reduce power output to prevent overheating and potential failure.
  • Surge Protection: This safety feature shields the battery from voltage spikes that can occur during charging. By absorbing excess voltage, surge protection minimizes the risk of damage to the battery’s internal components, ensuring longevity and reliability.
  • Quality Certification: Batteries that come with certifications such as UL, CE, or RoHS have been tested for safety and compliance with industry standards. These certifications provide assurance that the battery has undergone rigorous testing to ensure it meets safety regulations and is less likely to fail.

What Are the Best Extended Battery Options for iPhones?

The best extended battery options for iPhones provide additional power for users who need extra battery life throughout their day.

  • Anker PowerCore 10000: This compact power bank is lightweight and offers a high capacity of 10,000mAh, providing multiple charges for your iPhone. Its PowerIQ technology ensures fast charging, while its slim design makes it easy to carry in your pocket or bag.
  • Mophie Juice Pack Air: Designed specifically for iPhones, this battery case not only provides extra power but also protects your device from drops and scratches. With a 2,525mAh battery, it can nearly double your iPhone’s battery life, making it ideal for heavy users.
  • Apple MagSafe Battery Pack: This official accessory from Apple magnetically attaches to the back of your iPhone, providing a seamless integration with the device. It has a capacity of 1,460mAh, which can give you additional hours of usage, and it can be charged wirelessly while attached.
  • RAVPower 20000mAh Portable Charger: With a large capacity, this power bank can charge your iPhone several times over, making it great for extended trips. It features multiple output ports, allowing you to charge multiple devices simultaneously, and its fast charging capability ensures you won’t be waiting long for power.
  • iWalk Small Portable Charger: This ultra-compact option is perfect for those who prefer a minimalistic approach, offering a built-in cable for convenience. With a capacity of 6,000mAh, it can fully charge your iPhone once or provide a significant boost, making it ideal for on-the-go charging.

Which Extended Battery Provides the Longest Lasting Power?

The main options for the best iPhone extended batteries are:

  • Anker PowerCore 10000mAh: This compact battery pack is known for its high capacity and portability.
  • RAVPower Portable Charger 20000mAh: This option offers a substantial power reserve, making it suitable for longer trips without access to a power source.
  • Apple MagSafe Battery Pack: Designed specifically for iPhone, this battery pack seamlessly attaches and integrates with the device.
  • Mophie Powerstation Plus XL: This versatile battery pack features built-in cables and a high capacity, making it convenient for multiple device charges.

Anker PowerCore 10000mAh: The Anker PowerCore is a lightweight and compact option that easily fits into pockets or bags. It provides multiple charges for an iPhone, thanks to its high-density battery technology, and features PowerIQ and VoltageBoost which optimize charging speeds based on the device connected.

RAVPower Portable Charger 20000mAh: With a massive 20000mAh capacity, this power bank can recharge an iPhone multiple times, making it ideal for extended travel or outdoor activities. It also includes multiple output ports, allowing you to charge several devices simultaneously, and features fast charging technology to minimize downtime.

Apple MagSafe Battery Pack: Specifically designed for iPhone 12 and later models, the MagSafe Battery Pack magnetically attaches to the back of the device, providing a seamless charging experience. It supports wireless charging and can improve battery efficiency as it charges your phone, making it a stylish and functional choice for Apple users.

Mophie Powerstation Plus XL: This battery pack not only has a high capacity but also features built-in cables for both Lightning and USB-C devices, eliminating the need to carry extra cables. Its sleek design and intelligent battery management ensure efficient charging while also providing pass-through charging capabilities, which allows you to charge both the power bank and your device simultaneously.

What Are the Top Budget-Friendly Extended Battery Choices?

The top budget-friendly extended battery choices for iPhones include:

  • Anker PowerCore 10000: This compact power bank offers a high capacity of 10,000mAh, providing multiple charges for your iPhone. It’s known for its durable design and fast charging capabilities, allowing you to recharge your device quickly while on the go.
  • With a capacity of 16,750mAh, this power bank can charge an iPhone multiple times before needing to be recharged itself. It features dual USB ports for charging two devices simultaneously and includes advanced technology to prevent overheating and short-circuiting.
  • Specifically designed for various iPhone models, this case not only protects your phone but also adds significant battery life. It integrates seamlessly with iOS, showing battery status on the screen and allowing for wireless charging without removing the case.
  • This versatile portable charger features a built-in Lightning connector for easy recharging of your iPhone. With a capacity of 6,000mAh, it provides a good balance between portability and power, making it ideal for daily use.
  • This ultra-compact option is perfect for those who need a lightweight and easily portable battery. With a capacity of 3,200mAh, it can deliver a quick charge to your iPhone while fitting easily in your pocket or bag.

How Can You Maximize Your iPhone’s Battery Life Using an Extended Battery?

Maximizing your iPhone’s battery life using an extended battery involves selecting the right product and implementing effective usage strategies.

  • Choosing a High-Capacity Extended Battery: Look for batteries with higher mAh ratings that offer at least 200% additional power. A high-capacity extended battery ensures that your iPhone can last for longer periods, especially during heavy usage or when you’re away from a charging source.
  • Opt for a Portable Battery Case: A battery case combines protection with extra power, allowing you to charge your iPhone on the go. These cases are designed to be sleek and lightweight, making them convenient while providing a significant boost to your phone’s battery life.
  • Utilize Smart Charging Features: Some extended batteries come with smart charging technology that optimally charges your device based on its current battery level. This feature can prevent overcharging and extend the overall lifespan of both the extended battery and your iPhone’s battery.
  • Monitor Battery Usage: Use the iPhone’s built-in battery usage tool to identify apps draining power excessively. By managing background activity and limiting the use of high-drain apps, you can conserve battery life and make the most of your extended battery.
  • Adjust Power Settings: Lowering screen brightness, disabling location services, and turning off unnecessary notifications can help maximize battery life. These adjustments, combined with an extended battery, can significantly extend the time between charges.
  • Keep Your iPhone Updated: Regular software updates often include improvements to battery efficiency. Ensuring your iPhone is running the latest version of iOS can help it work optimally with your extended battery.

What Common Problems Do Users Experience with Extended Batteries?

Users often encounter several common problems when using extended batteries for their iPhones:

  • Incompatibility: Many extended batteries may not be fully compatible with all iPhone models, leading to issues such as improper charging or failure to fit securely in the device.
  • Durability: Extended batteries can sometimes be less durable than expected, with reports of the battery losing charge capacity over time or physical wear and tear affecting performance.
  • Heat Generation: Extended batteries can produce more heat than standard batteries, which can be uncomfortable for users and may even cause damage to the device or the battery itself if temperatures get too high.
  • Bulkiness: Extended battery cases tend to add significant bulk to the iPhone, making it less portable and more cumbersome to handle compared to using the phone with a standard battery.
  • Charging Speed: Some extended batteries may charge slower than the original iPhone battery, which can be frustrating for users who are accustomed to faster charging times.
  • Battery Life Indicator Issues: Users often find that the battery life indicator does not accurately reflect the remaining charge of the extended battery, leading to unexpected shutdowns or misjudgments about battery health.

Incompatibility can cause significant frustration for users who invest in extended batteries, as they may find that their chosen product does not work seamlessly with their specific iPhone model. This issue can manifest as problems during charging or even physical incompatibility with the phone case.

Durability is another concern, as users may notice that their extended battery begins to lose its ability to hold a charge after minimal use, which can lead to disappointment and additional costs for replacements.

Heat generation is a critical issue as well; extended batteries can generate excess heat during use or charging, which not only affects the comfort of handling the device but could also pose risks of overheating, potentially damaging the iPhone or the battery itself.

In terms of bulkiness, the added weight and size of extended battery cases can detract from the sleek design of the iPhone, making it less appealing for users who prefer a more streamlined device.

Charging speed can be a significant annoyance for users, especially in situations where time is of the essence, as slower charging rates can hinder the ability to quickly recharge the device during busy days.

Lastly, issues with the battery life indicator can lead to confusion and inconvenience, as users may find themselves unprepared for a sudden loss of power due to inaccurate readings from the extended battery.

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