Top Smartphone Battery Cases of 2025

Portable chargers are an excellent solution for extending the battery life of your smartphone or other devices. However, they can often be bulky and cumbersome. A battery case offers a sleek and tailored alternative, eliminating the hassle of cable management associated 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 are designed not only to extend your phone's battery life but also to provide essential protection. They should not interfere with your phone's features, such as NFC or ports, and should add minimal bulk. Features like wireless charging and quick charging can make these cases even more convenient. However, some options can be too bulky or fail to deliver a reliable charge. To help you find the perfect fit, we've selected five top battery cases for the leading smartphones on the market.

In the market for a new phone? Check out our current recommendations for the best phones to buy right now, including our top picks for Android phones, iPhones, and gaming-focused devices.

Not interested in battery cases? Explore our curated guides for other essential phone accessories, such as wireless and portable chargers, and screen protectors designed to protect your iPhone 16 Pro from damage.

1. Mophie Juice Pack Battery Case

Best iPhone 16 Pro Battery Case

### Mophie Juice Pack Battery Case

0Experience enhanced protection and extended battery life with the compact Mophie Juice Pack Battery Case for the iPhone 16 Pro. 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 can handle a day with moderate use, but 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 attaches to your phone and connects via the USB-C port, with an indicator light to monitor battery levels and a stand-by mode to prevent overcharging.

While the Juice Pack offers less battery boost compared to other options, its 50% increase in battery life for the iPhone 16 Pro is significant. It maintains a compact design, adding minimal bulk and weighing only 3.5oz, making it easy to handle and slip into a pocket or bag. This case also offers excellent protection, rated for falls up to 6ft, and features raised edges to safeguard the screen and camera. Although it includes an integrated passive magnet for accessories, it does not support wireless charging, making it one of the best iPhone accessories available.

2. 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 that includes 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 With its large 4,685mAh battery, the iPhone 16 Pro Max may not seem to need additional power. However, if you're using features like Cinematic Mode or playing games on Apple Arcade, extra juice can be beneficial. The ZeroLemon Battery Case provides peace of mind with its two 5,000mAh batteries, offering about 1.5 extra charges. LED indicators on the case show the charging status and battery levels.

The ZeroLemon case boasts military-grade protection and shockproofing, ensuring your phone remains safe. Despite its 10,000mAh capacity, the case adds significant bulk, making it suitable for those with larger hands. When connected via USB-C, it supports speedy 18W fast charging, fully charging your phone in about two hours. However, it does not support data passthrough or wired headsets when the case is attached.

3. Mophie Juice Pack Wireless

Best iPhone SE Battery Case

### Mophie Juice Pack Wireless

0Extend 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) is a powerful budget-friendly smartphone, known for its performance on the latest iOS. However, its 2,018mAh battery may not last a full day with intensive use. The Mophie Juice Pack Wireless offers a complete charge, allowing you to stay away from power outlets longer.

This Mophie case not only extends your phone's daily use but also enhances its longevity with its slim, protective shell that doesn't add excessive bulk. It features short-circuit, over-charge, and temperature protection. When it's time to recharge, simply place it on a wireless charger, and both the case and your phone will be powered up. The case also supports passthrough technology for connecting a lightning cable or headphones without removal.

4. Newdery Battery Case

Best Samsung Galaxy S25 Case

### NEWDERY Battery Case

0With an 8,000 mAh battery, a compact design, and wireless charging, the NEWDERY Battery Case for the Samsung Galaxy S25 offers significant benefits. 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 for its size, but heavy usage can quickly drain it. The Newdery Battery Case provides an additional 8,000mAh, nearly two full charges, ensuring uninterrupted use of demanding features like cameras and gaming without adding excessive bulk.

The Newdery Battery Case slides onto your Galaxy S25 and connects via the USB-C port to deliver power. Even with the case attached, the USB-C port supports NFC and data transfer. You can charge the case and phone wirelessly, or use the USB-C for faster charging. Beyond charging, the case's TPU and PC materials offer robust protection against potential damage.

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

5. 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, charges it wirelessly, and includes 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 can become obsolete when you upgrade your phone, but the Mophie Juice Pack Connect offers a versatile solution. It's not a traditional case but a battery pack that attaches to your phone.

With the Juice Pack Connect, you attach a small anchor to your phone or case and then attach the 5,000mAh battery pack as needed. It uses Qi wireless charging, compatible with various smartphones, and can be recharged wirelessly. The pack also includes a stand for propping up your phone while watching videos or reviewing documents.

How to Choose the Best Battery Case

Choosing the right battery case involves more than just selecting the highest capacity option, which can result in a bulky device. The ideal case balances battery capacity, size, and price.

If you only need a charger to carry occasionally, a portable charger might be more practical than a molded case. A battery case should fit comfortably in your pocket or bag without adding excessive 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 power storage. These features are crucial if you plan to keep the case on your phone constantly, especially for 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. The 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 risk is overheating if the case lacks proper ventilation.

Should you drain your battery case before charging?

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