Extend your smartphone's battery life effortlessly with a high-quality portable charger. While many portable chargers can be bulky, battery cases offer a sleek, integrated solution, eliminating the need for extra cables. They provide added power and protection, all in one convenient package.
TL;DR – The Best 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 seamlessly integrates extra power and impact protection without compromising phone functionality, like NFC or port access, or adding excessive bulk. Wireless and quick charging capabilities are significant pluses. However, some cases are overly bulky or unreliable. Below are five top-rated battery cases for popular smartphones.
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.
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1. Mophie Juice Pack Battery Case
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### 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.
The iPhone 16 Pro's 3,582mAh battery typically lasts a day with moderate use, but demanding tasks like photography or gaming drain it quickly. The Mophie Juice Pack adds a substantial boost with its 2,800mAh battery, easily attaching to the phone via the USB-C port. A battery indicator light shows charge levels, and standby mode prevents overcharging. While not offering the longest battery life, it provides a significant 50% increase, remaining surprisingly compact and lightweight. It also offers drop protection up to 6 feet and raised edges for screen and camera protection. It includes an integrated passive magnet for accessories, but lacks wireless charging.
2. ZeroLemon Battery Case
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### 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 and shockproofing; Supports 18W fast charging.
CONS: No data passthrough.
Even the iPhone 16 Pro Max's large 4,685mAh battery can be quickly depleted by intensive use. ZeroLemon's case provides ample power with its dual 5,000mAh batteries, offering approximately 1.5 extra charges. LED indicators display charging status and battery levels. Built for durability, it features military-grade protection and shockproofing. While bulkier due to its 10,000mAh capacity, it offers 18W fast charging (0-100% in about two hours) via USB-C. Note that it doesn't support data passthrough or wired headsets while attached.
3. Mophie Juice Pack Wireless
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### 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: Only provides enough battery for one full phone charge.
The iPhone SE (2022)'s 2,018mAh battery may struggle with heavy use. The Mophie Juice Pack Wireless provides a full charge, extending usage significantly. Its slim design adds minimal bulk, and includes short-circuit, overcharge, and temperature protection. Qi wireless charging is supported, and passthrough technology allows Lightning cable and headphone use without case removal.
4. Newdery Battery Case
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### 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: Display shows charging percentages; Supports wireless charging.
CONS: Difficult to remove phone from case.
The Samsung Galaxy S25's 4,000mAh battery, while impressive, can be depleted by demanding apps. The Newdery Battery Case adds a significant 8,000mAh (nearly two full charges), extending usage even with intensive tasks. It attaches via USB-C, maintaining NFC and data transfer capabilities. Wireless charging is supported, and fast charging via USB-C is available. The case also provides good protection thanks to its TPU and PC materials.
This case is also available for the Galaxy S25 Plus and Galaxy S25 Ultra.
5. Mophie Juice Pack Connect
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### Best Battery Case for Any Phone
### Mophie Juice Pack Connect
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; Uses Qi wireless charging; Includes a stand.
CONS: Slightly confusing to attach the adapter.
The Mophie Juice Pack Connect offers a versatile solution, working with various phones. It's not a case in the traditional sense, but attaches a 5,000mAh battery pack to your phone or existing case. Qi wireless charging is supported, and it includes a built-in stand for convenient viewing.
How to Choose the Best Battery Case
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Selecting a battery case isn't just about finding the highest capacity. Consider the balance between battery capacity, size, weight, and price. If you only need occasional extra power, a portable charger might suffice. Choose a case that fits comfortably in your pocket or bag without adding excessive bulk. High-capacity cases may lack features like quick charging or Qi wireless charging, so consider your priorities.
Battery Case FAQ
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### Are battery cases safe for your phone?
Yes, when used correctly, battery cases shouldn't damage your phone's battery. Power is drawn directly from the case, and once depleted, the phone's battery takes over. Smartphones monitor charging to prevent overcharging. The main concern is overheating if the case lacks adequate ventilation.
### Should you drain your battery case before charging?
No, it's unnecessary and may even damage lithium-ion batteries. Avoid fully draining the battery to maintain its capacity.
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