Home News Top Smartphone Battery Cases of 2025

Top Smartphone Battery Cases of 2025

by Nathan Apr 11,2025

The best portable chargers are an excellent way to extend the battery life of your smartphone or other devices. However, they can often be bulky. A battery case offers a sleek, tailored solution for your phone, eliminating the need for cumbersome cable management that comes with traditional power banks.

TL;DR – The Best Smartphone Battery Cases:

### Mophie Juice Pack Battery Case

0See it at Amazon### ZEROLEMON Battery Case

0See it at Amazon### Mophie Juice Pack Wireless

0See it at Amazon### NEWDERY Battery Case

0See it at Amazon### Mophie Juice Pack Connect

1See it at AmazonBattery cases not only provide additional battery life but also offer protection against damage. It's essential to choose a case that doesn't interfere with your phone's features, such as NFC or ports, and doesn't add excessive bulk. Features like wireless charging and quick charging can significantly enhance convenience. However, some battery cases can make your phone too bulky or fail to deliver a reliable charge. To help you find the perfect fit, we've curated a list of five top battery cases for leading smartphones.

In the market for a new phone? Explore our latest recommendations for the best phones to buy right now, including our top-rated Android phones, iPhones, and phones designed specifically for gaming.

Battery cases not your thing? We also have curated guides for other essential phone accessories, including wireless and portable chargers, and screen protectors to safeguard your iPhone 16 Pro from any potential falls.

  1. Mophie Juice Pack Battery Case

Best iPhone 16 Pro Battery Case

### Mophie Juice Pack Battery Case

0Enhance your iPhone 16 Pro with this compact, lightweight battery case that offers both protection and additional battery life. See it at AmazonProduct SpecificationsCapacity2,800 mAhSize6.5" x 2.9" x 0.71" Weight3.5 ouncesPROSCompact and lightweightIncludes integrated passive magnet for accessoriesCONSLimited battery sizeThe iPhone 16 Pro's 3,582mAh battery is typically sufficient for a day of moderate use. However, activities like photography, social media browsing, or gaming can quickly drain it. The Mophie Juice Pack Battery Case for iPhone 16 Pro adds an extra 2,800mAh, ensuring your phone lasts longer. The case easily connects to your phone via the USB-C port and features an indicator light to monitor battery levels, along with a stand-by mode to prevent overcharging.

While the Juice Pack may not provide as much battery life as some other options, its 50% boost to the iPhone 16 Pro is significant, maintaining a compact design with minimal added bulk, weighing just 3.5oz. The phone remains easy to handle and slips into pockets or bags effortlessly, making this one of the best iPhone accessories available.

Additionally, this case offers robust protection for your iPhone, rated to withstand falls from up to 6ft. Raised edges protect the screen and camera from scratches and cracks. Although it includes an integrated passive magnet for attaching to various accessories, it does not support wireless charging.

  1. ZeroLemon Battery Case

Best iPhone 16 Pro Max Battery Case

### ZEROLEMON Battery Case

0Ensure your iPhone 15 Pro Max stays safe and charged with this rugged case, featuring two 5,000 mAh batteries and military-grade protection. See it at AmazonProduct SpecificationsCapacity10,000 mAh (2 x 5,000 mAh)Size6.74" x 3.48" x 0.99"Weight8.5 ouncesPROSMilitary-grade protection and shockproofingSupports 18W fast chargingCONSNo data passthrough The iPhone 16 Pro Max boasts a substantial 4,685mAh battery, but for intensive use like Cinematic Mode or Apple Arcade gaming, additional power is beneficial. ZeroLemon's battery case provides peace of mind with its dual 5,000mAh batteries, offering about 1.5 extra charges. LED indicators on the case show charging status and battery levels.

Designed for durability, ZeroLemon's case offers military-grade protection and shockproofing, ensuring your phone remains safe. While the added 10,000mAh capacity makes the case bulkier, it's ideal for those with larger hands. The case supports 18W fast charging via USB-C, fully charging your phone in about two hours. However, it does not support data passthrough or wired headsets when connected.

  1. Mophie Juice Pack Wireless

Best iPhone SE Battery Case

### Mophie Juice Pack Wireless

0Enhance your iPhone SE's battery life with this slim, lightweight protective case that includes a 2,525mAh battery and supports Qi charging. See it at AmazonProduct SpecificationsCapacity2,525mAhSize2.81" x 4.14 x 0.66"Weight3.51 ouncesPROSSlim, lightweight designSupports Qi wireless chargingCONSOnly provides enough battery for one full phone chargeThe iPhone SE (2022) offers impressive performance at a budget-friendly price, but its 2,018mAh battery may struggle to last a full day with intensive use. The Mophie Juice Pack Wireless provides a full charge, extending your phone's usage time.

This Mophie case not only extends battery life but also adds a slim layer of protection without adding significant bulk. It includes short-circuit, over-charge, and temperature protection to keep your device safe. The case supports wireless charging, allowing you to charge both the case and your phone simultaneously. Passthrough technology enables you to connect a lightning cable or headphones without removing the case.

  1. Newdery Battery Case

Best Samsung Galaxy S25 Case

### NEWDERY Battery Case

0Experience the benefits of an 8,000 mAh battery, compact design, and wireless charging with the NEWDERY Battery Case for the Samsung Galaxy S25. See it at AmazonProduct SpecificationsCapacity8,000 mAhSizeNot listedWeight2.82 ouncesPROSDisplay shows charging percentagesSupports wireless chargingCONSDifficult to remove phone from caseThe Samsung Galaxy S25 features a robust 4,000mAh battery, but heavy usage can quickly deplete it. The Newdery Battery Case offers an additional 8,000mAh, providing nearly two full charges, ensuring you stay powered up even during intensive use like gaming or photography.

The case easily slides onto your Galaxy S25 and connects via the USB-C port. It maintains NFC and data transfer capabilities even when attached. Wireless charging is supported, and fast charging via USB-C ensures quick recharges. The case's TPU and PC materials provide additional protection against potential damage.

This case is also available for the Galaxy S25 Plus and Galaxy S25 Ultra models.

  1. Mophie Juice Pack Connect

Best Battery Case for Any Phone

### Mophie Juice Pack Connect

1Enjoy the versatility of this universal battery that attaches to your phone, offering wireless charging and a handy stand. See it at AmazonProduct SpecificationsCapacity5,000 mAhSize2.7" x 4.09" x 0.56" Weight4.4 ouncesPROSUniversal design that uses Qi wireless chargingIncludes a standCONSSlightly confusing to attach the adapterBattery cases are great, but they often become obsolete when you upgrade your phone. The Mophie Juice Pack Connect offers a solution that works with your current and future devices. This isn't a traditional case but rather a battery pack that attaches to your phone.

With the Juice Pack Connect, you attach a small anchor to your phone or case, allowing you to easily connect the 5,000mAh battery pack when needed. It uses Qi wireless charging, compatible with a wide range of smartphones, and can be recharged wirelessly. The included stand is perfect for watching videos or reviewing documents.

How to Choose the Best Battery Case

Choosing the right battery case isn't just about finding the one with the largest capacity; it's about balancing capacity, size, and price. If you're looking for something to carry in your bag, a portable charger might be more suitable. A battery case should fit comfortably in your pocket or bag without adding too much weight or bulk, while also providing protection for your phone.

High-capacity battery cases often sacrifice features like quick charging and Qi charging for more energy storage. These features are crucial if you plan to keep the case on your phone at all times, especially for the convenience of simultaneous wireless charging.

Battery Case FAQ

Are battery cases safe for your phone?

Yes, battery cases are safe for your phone as long as they are used correctly. Your phone draws power directly from the case, and once the case is depleted, it switches to the phone's battery. Smartphones have built-in mechanisms to prevent overcharging. The main concern is overheating, which can be mitigated with proper ventilation.

Should you drain your battery case before charging?

No, it's not necessary to fully drain lithium-based batteries in battery cases. Doing so can actually damage the battery and reduce its capacity over time.