Extend your smartphone's battery life effortlessly with a high-quality portable charger. While traditional power banks can be bulky, a sleek battery case offers a tailored solution, eliminating cable clutter. These cases seamlessly integrate with your phone, providing extra power and often added protection.
TL;DR – Top Smartphone Battery Cases:
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Mophie Juice Pack Battery Case
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ZEROLEMON Battery Case
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Mophie Juice Pack Wireless
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NEWDERY Battery Case
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Mophie Juice Pack Connect
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The ideal battery case boosts your phone's battery life, offers robust protection, and doesn't compromise functionality (NFC, ports, etc.). Wireless and quick charging are added bonuses. However, some cases add excessive bulk or offer unreliable charging. We've curated five top-rated cases for popular phones.
Considering a new phone? Explore our recommendations for the best phones, including top Androids, iPhones, and gaming-focused devices.
Battery cases not for you? Check out our guides on wireless chargers, portable chargers, and screen protectors.
1. Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case

Mophie Juice Pack Battery Case
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Product Specifications:
Capacity: 2,800 mAh
Size: 6.5" x 2.9" x 0.71"
Weight: 3.5 ounces
Pros: Compact and lightweight; Integrated passive magnet for accessories.
Cons: Limited battery size.
Extend your iPhone 16 Pro's battery life with this compact and protective case. While offering a smaller capacity than some alternatives, the 2,800mAh battery provides a significant boost, maintaining a surprisingly slim profile. It offers drop protection up to 6ft and includes a magnet for accessory attachment. Note: it doesn't support wireless charging.
2. ZeroLemon Battery Case
Best iPhone 16 Pro Max Battery Case

ZEROLEMON Battery Case
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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; Supports 18W fast charging.
Cons: No data passthrough.
Power through even the most demanding tasks with ZeroLemon's rugged case. Its dual 5,000mAh batteries provide ample extra power, while military-grade protection keeps your iPhone 16 Pro Max safe. Enjoy fast 18W charging, though note that data passthrough and wired headset use aren't supported.
3. Mophie Juice Pack Wireless
Best iPhone SE Battery Case

Mophie Juice Pack Wireless
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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: Provides one full phone charge.
This slim case extends the life of your iPhone SE (2022) with a convenient 2,525mAh battery and supports Qi wireless charging. It offers added protection without significant bulk and includes passthrough technology for wired connections.
4. NEWDERY Battery Case
Best Samsung Galaxy S25 Case

NEWDERY Battery Case
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Product Specifications:
Capacity: 8,000 mAh
Size: Not listed
Weight: 2.82 ounces
Pros: Charging percentage display; Supports wireless charging.
Cons: Difficult to remove phone from case.
The NEWDERY case provides a substantial 8,000mAh boost for your Samsung Galaxy S25, nearly doubling its battery life. It supports wireless charging and maintains access to the USB-C port for data transfer and NFC.
5. Mophie Juice Pack Connect
Best Universal Battery Case

Mophie Juice Pack Connect
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Product Specifications:
Capacity: 5,000 mAh
Size: 2.7" x 4.09" x 0.56"
Weight: 4.4 ounces
Pros: Universal design; Qi wireless charging; Includes a stand.
Cons: Slightly confusing adapter attachment.
This universal battery pack offers Qi wireless charging compatibility for a variety of smartphones. It attaches easily and includes a convenient stand for hands-free viewing.
Choosing the Right Battery Case
Selecting a battery case involves balancing capacity, size, and price. Consider your needs: a larger capacity might be less portable. Prioritize features like quick charging and Qi wireless charging for optimal convenience.
Battery Case FAQ
Are battery cases safe? Yes, when used correctly. Proper ventilation helps prevent overheating.
Should you drain the battery case before charging? No, fully draining lithium-ion batteries can damage them.