The best portable chargers are an essential tool for extending the battery life of your smartphone or other devices. However, many of these can be quite bulky. A battery case offers a sleek, tailored solution for your phone, eliminating the need for 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 Amazon
Battery cases are designed to not only boost your phone's battery life but also offer protection from damage. It's crucial that these cases do not interfere with your phone’s features such as NFC or ports, and they should avoid adding excessive bulk. Features like wireless and quick charging can make battery cases even more convenient. However, some products might increase the phone's size too much or fail to provide a reliable charge. We've selected five battery cases for the most popular phones to help you make an informed choice.
In the market for a new phone? Explore our latest recommendations for the best phones available now, including top-rated Android phones, iPhones, and devices optimized for gaming.
Battery cases not your thing? We've also curated guides for other essential phone accessories, such as wireless and portable chargers, and screen protectors to shield your iPhone 16 Pro from any potential drops.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0Enhance your iPhone 16 Pro with this compact, protective case that includes a 2,800mAh battery. 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 design
- Integrated passive magnet for accessories
Cons:
- Limited battery size
The iPhone 16 Pro’s 3,582mAh battery can last a day with moderate use, but intensive activities like photography, social media browsing, or gaming can drain it quickly. The Mophie Juice Pack Battery Case adds an additional 2,800mAh, extending the phone's life significantly. It seamlessly attaches to your phone and connects via the USB-C port. An indicator light keeps you updated on battery levels, and the case's stand-by mode prevents overcharging.
While the Juice Pack may not provide as much extra battery life as other options, it boosts the iPhone 16 Pro's battery by 50%, making a substantial difference while remaining compact and lightweight at just 3.5oz. The phone remains easy to handle and fits comfortably in a pocket or bag, making this one of the best iPhone accessories available.
This case also offers excellent protection, withstanding falls up to 6ft. Raised edges safeguard the screen and camera from scratches and cracks. Mophie includes an integrated passive magnet for attaching accessories, although 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 safe and charged with this rugged case, featuring two 5,000mAh 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
The iPhone 16 Pro Max's 4,685mAh battery is impressive, but if you're using demanding features like Cinematic Mode or Apple Arcade, extra power is beneficial. ZeroLemon’s battery case provides peace of mind with two 5,000mAh batteries, adding about 1.5 extra charges. LED indicators show the charging status and battery levels.
Designed for durability, ZeroLemon’s case offers military-grade protection and shockproofing. Although it's bulkier due to its 10,000mAh capacity, it's ideal for those with larger hands. The case supports 18W fast charging, fully charging your phone in about two hours via USB-C, though it doesn't support data transfer or wired headsets when attached.
Mophie Juice Pack Wireless
Best iPhone SE Battery Case
### Mophie Juice Pack Wireless
0Charge your iPhone SE with this slim, lightweight 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) offers great performance at a budget-friendly price, but its 2,018mAh battery may not last a full day with heavy use. The Mophie Juice Pack Wireless case provides a complete charge, extending your phone's daily usage.
This case also adds a layer of protection without adding much bulk. It features short-circuit, over-charge, and temperature protection. When recharging, you can use a wireless charger to power both the case and your phone simultaneously. Passthrough technology allows for connecting a lightning cable or headphones without removing the case.
Newdery Battery Case
Best Samsung Galaxy S25 Case
### NEWDERY Battery Case
0Enjoy an 8,000mAh battery, compact design, and wireless charging with the NEWDERY Battery Case for the Samsung Galaxy S25. 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 drain it quickly. The Newdery Battery Case adds 8,000mAh, nearly two full charges, ensuring you stay powered up even when using intensive features like cameras or gaming.
The case slides onto your Galaxy S25 and connects via the USB-C port. It supports NFC and data transfer, and you can charge it wirelessly or quickly via USB-C. The case's TPU and PC materials provide robust 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 a universal battery solution that wirelessly charges your phone 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 using 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 is a versatile solution that works with your current and future devices. It's not a traditional case but rather a battery pack that attaches to your phone.
Attach a small anchor point to your phone or case, then easily connect the 5,000mAh battery pack when 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
Selecting the right battery case isn't just about choosing the one with the largest capacity; it's about finding the right balance between battery capacity, size, and price. If you only need a charger for your bag, a portable charger might be more suitable. A battery case should fit comfortably in your pocket or bag, adding minimal bulk and weight while offering protection.
High-capacity cases often sacrifice features like quick charging and Qi charging. These features are crucial if you plan to 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 if used correctly. The phone draws power directly from the case, switching to its internal battery once the case is depleted. Smartphones have built-in safeguards to prevent overcharging. The main concern is overheating, which can be avoided if the case has adequate ventilation.
Should you drain your battery case before charging?
No, it's not necessary to drain lithium-based batteries in battery cases. Fully draining them can even harm the battery, reducing its capacity over time.
