Top Smartphone Battery Cases for 2025 Revealed

The best portable chargers are a fantastic way to keep your smartphone or other devices powered up on the go. However, these chargers can often be bulky and cumbersome. A battery case offers a sleeker, more tailored solution for your phone, eliminating the need for messy 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 Amazon

Battery cases are essential for not only extending your phone's battery life but also providing protection against damage. It's crucial 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 make battery cases even more convenient. However, some cases 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, plus our best-reviewed Android phones, iPhones, and phones purpose-built for gaming.

Battery cases not your thing? We've also got hand-picked guides for other useful phone accessories like wireless and portable chargers, and screen protectors to save your iPhone 16 Pro from taking any fall damage.

1. Mophie Juice Pack Battery Case

Best iPhone 16 Pro Battery Case

### Mophie Juice Pack Battery Case

0Enjoy a healthy dose of protection, some extra juice, and a compact design with this battery case for the iPhone 16 Pro. See it at Amazon

Product Specifications

• Capacity: 2,800 mAh
• Size: 6.5" x 2.9" x 0.71"
• Weight: 3.5 ounces

PROS

• Compact and lightweight
• Includes integrated passive magnet for accessories

CONS

• Limited battery size

The iPhone 16 Pro's 3,582mAh battery is generally sufficient for a day's moderate use, but activities like photography, social media scrolling, or gaming can quickly drain it. The Mophie Juice Pack Battery Case for iPhone 16 Pro extends your phone's life with its 2,800mAh battery. The case easily slots onto the phone and connects via the USB-C port. An indicator light keeps you informed about battery levels, and a stand-by mode prevents overcharging.

While the Juice Pack may not offer as much extra battery life as some other options, it provides a significant 50% boost to the iPhone 16 Pro, maintaining a surprisingly compact form. Weighing just 3.5oz, it adds minimal bulk, making it easy to handle and slip into a pocket or bag. This makes it one of the best iPhone accessories you can get.

This case also offers excellent protection, rated for falls up to 6ft, which can save you from the panic of dropping your device. Raised edges protect the screen and camera from scratches and cracks. Mophie includes an integrated passive magnet for attaching the iPhone to various accessories, though it doesn't support wireless charging.

2. ZeroLemon Battery Case

Best iPhone 16 Pro Max Battery Case

### ZEROLEMON Battery Case

0Keep your iPhone 15 Pro Max safe and charged with this rugged case featuring two 5,000 mAh batteries and military-grade protection. See it at Amazon

Product Specifications

• Capacity: 10,000 mAh (2 x 5,000 mAh)
• Size: 6.74" x 3.48" x 0.99"
• Weight: 8.5 ounces

PROS

• Military-grade protection and shockproofing
• Supports 18W fast charging

CONS

• No data passthrough

Despite the iPhone 16 Pro Max's impressive 4,685mAh battery, heavy usage like Cinematic Mode or gaming can still drain it. ZeroLemon's battery case offers peace of mind with its two 5,000mAh batteries, providing about 1.5 extra charges. LED indicators show the charging status and battery levels.

ZeroLemon's case is built tough, with military-grade protection and shockproofing to safeguard your phone. While the added 10,000mAh capacity makes it bulkier, it's ideal for those with larger hands. When connected via USB-C, the case supports speedy 18W fast charging, fully charging your phone in about two hours. However, it doesn't support data passthrough or wired headsets when attached.

3. Mophie Juice Pack Wireless

Best iPhone SE Battery Case

### Mophie Juice Pack Wireless

0Juice up your iPhone SE with this slim, lightweight protective case that houses a 2,525mAh battery and supports Qi charging. See it at Amazon

Product Specifications

• Capacity: 2,525mAh
• Size: 2.81" x 4.14" x 0.66"
• Weight: 3.51 ounces

PROS

• Slim, lightweight design
• Supports Qi wireless charging

CONS

• Only provides enough battery for one full phone charge

The iPhone SE (2022) is a powerful budget smartphone, but its 2,018mAh battery may struggle with intensive use. The Mophie Juice Pack Wireless offers a full charge, extending your phone's daily usage. The slim, protective shell doesn't add much bulk and includes short-circuit, over-charge, and temperature protection. You can recharge the case wirelessly, and passthrough technology allows you to connect a lightning cable or headphones without removing the case.

4. Newdery Battery Case

Best Samsung Galaxy S25 Case

### NEWDERY Battery Case

0With an 8,000 mAh battery, compact design, and wireless charging, NEWDERY Battery Case for the Samsung Galaxy S25 has a lot to offer. See it at Amazon

Product Specifications

• Capacity: 8,000 mAh
• Size: Not listed
• Weight: 2.82 ounces

PROS

• Display shows charging percentages
• Supports wireless charging

CONS

• Difficult to remove phone from case

The Samsung Galaxy S25 boasts a 4,000mAh battery, but heavy use can quickly deplete it. The Newdery Battery Case provides an additional 8,000mAh, nearly two full charges, without adding much bulk. The case slides onto your Galaxy S25 and connects via the USB-C port, maintaining NFC and data transfer capabilities. Wireless charging is supported, and fast charging via USB-C ensures quick recharges. The TPU and PC materials offer robust protection against 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

1Grab this universal battery that attaches to your phone, wirelessly charging it, and even includes a handy stand. See it at Amazon

Product Specifications

• Capacity: 5,000 mAh
• Size: 2.7" x 4.09" x 0.56"
• Weight: 4.4 ounces

PROS

• Universal design that uses Qi wireless charging
• Includes a stand

CONS

• Slightly confusing to attach the adapter

Battery 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 rather a battery pack that attaches to your phone. You attach a small anchor point to your phone or case, then slip on the 5,000mAh battery pack as needed. It uses Qi wireless charging, supporting various smartphones and allowing for wireless recharging. 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. Opting for the biggest battery might result in a case too large for your pocket. The ideal charging case balances battery capacity, size, and price.

If you only need a charger for occasional use, a portable charger might be more suitable. A battery case molded to fit your phone is only beneficial if you use it regularly. You need a case that fits comfortably in your pocket or bag without adding too much weight or bulk, while also providing protection.

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

Battery Case FAQ

Are battery cases safe for your phone?

Yes, battery cases are safe for your phone as long as they're 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 monitoring to prevent overcharging. The main concern is overheating if the case lacks proper ventilation.

Should you drain your battery case before charging?

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