Portable chargers are a fantastic solution for extending the battery life of your smartphone or other devices. However, they can often be bulky and cumbersome. Battery cases offer a sleek alternative, tailored specifically to your phone's design, and they eliminate the need for additional cables. These cases not only provide extra power but also offer protection against damage, ensuring your phone remains safe and functional.
TL;DR – The Best Smartphone Battery Cases:
### Mophie Juice Pack Battery Case
0See it at Amazon
### ZEROLEMON Battery Case
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### 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 should not only boost your phone's battery life but also protect it from damage. They should be designed to not interfere with your phone's features, such as NFC or ports, and should be as slim as possible to avoid adding unnecessary bulk. Features like wireless charging and quick charging can further enhance their convenience. However, some battery cases might add too much bulk or fail to deliver a reliable charge. To help you find the perfect battery case, we've selected five top options for the most popular 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.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0Experience the perfect blend of protection and power with this compact battery case designed 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 adds an extra 2,800mAh, ensuring your phone lasts longer. Simply slot it onto your phone and connect via the USB-C port. An indicator light keeps you informed of battery levels, and a stand-by mode prevents overcharging.
While the Juice Pack might not offer the largest battery boost, it adds a significant 50% to the iPhone 16 Pro's life while maintaining a compact design. Weighing only about 3.5 ounces, it's easy to handle and fits comfortably in a back pocket or bag, making it one of the best iPhone accessories available.
This case also provides robust protection, rated for falls up to 6 feet, and features raised edges to safeguard the screen and camera from scratches and cracks. It includes an integrated passive magnet for attaching to various accessories, though it does not support wireless charging.
ZeroLemon Battery Case
Best iPhone 16 Pro Max Battery Case
### ZEROLEMON Battery Case
0Ensure your iPhone 15 Pro Max stays charged and protected with this rugged case featuring dual 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 large 4,685mAh battery, intensive use like Cinematic Mode or Apple Arcade gaming can quickly deplete it. The ZeroLemon Battery Case offers peace of mind with its two 5,000mAh batteries, providing approximately 1.5 extra charges. LED indicators show the charging status and battery levels.
This case is built tough with military-grade protection and shockproofing, making it ideal for those who need robust protection. However, its significant capacity adds bulk, best suited for those with larger hands. With 18W fast charging via USB-C, you can fully charge your phone in about two hours, though it doesn't support data passthrough or wired headsets when attached.
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 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 an excellent budget smartphone, but its 2,018mAh battery may not last a full day with intensive use. The Mophie Juice Pack Wireless offers a complete charge, keeping you away from power outlets longer. This case adds minimal bulk and includes protection against short-circuits, overcharging, and temperature fluctuations.
When you need to recharge the case, simply place it on a wireless charger, and both the case and your phone will be juiced up. Passthrough technology allows you to connect a Lightning cable or headphones without removing the case, enhancing its convenience.
Newdery Battery Case
Best Samsung Galaxy S25 Case
### NEWDERY Battery Case
0Enhance your Samsung Galaxy S25 with this 8,000 mAh battery case, offering a compact design and wireless charging capabilities. 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 drain it. The Newdery Battery Case adds an extra 8,000mAh, nearly two full charges, ensuring you won't run out of power during intense use like gaming or using the camera. The case slides onto your phone and connects via USB-C, maintaining NFC and data transfer capabilities.
With wireless charging support, you can recharge both the case and phone simultaneously. The case's TPU and PC materials provide added protection against damage. This case is also available for the Galaxy S25 Plus and Galaxy S25 Ultra models.
Mophie Juice Pack Connect
Best Battery Case for Any Phone
### Mophie Juice Pack Connect
1Experience versatile charging with this universal battery that attaches to your phone for wireless charging and 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
Unlike traditional battery cases, the Mophie Juice Pack Connect offers a universal solution that can adapt to your current and future smartphones. It doesn't cover your phone but attaches a 5,000mAh battery pack via a small anchor point. The battery uses Qi wireless charging, supporting a wide range of devices and allowing for wireless recharging.
Additionally, it comes with a stand, perfect for watching videos or reviewing documents. While attaching the adapter might be slightly tricky, the versatility and convenience it offers make it a valuable accessory.
How to Choose the Best Battery Case
Choosing the right battery case involves balancing battery capacity, size, and price. While a high-capacity battery might seem appealing, it can result in a bulky case that's impractical to carry. If you're only planning to use the case occasionally, a portable charger might be a better option. The ideal battery case should fit comfortably in your pocket or bag, add minimal weight and bulk, and provide adequate protection for your phone.
Additionally, consider whether you need features like quick charging or Qi charging, especially if you want to keep the case on your phone at all times. These features can be crucial for maintaining a convenient and efficient charging experience.
Battery Case FAQ
Are battery cases safe for your phone?
Yes, battery cases are safe for your phone when used correctly. They provide power directly to your phone, and once the case's battery is depleted, your phone switches to its internal battery. Modern smartphones have built-in safeguards to prevent overcharging. The only potential issue 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 before charging. In fact, allowing the battery to completely drain can damage it over time, reducing its overall capacity.
