Extend your smartphone's battery life effortlessly with a sleek and convenient battery case. Unlike bulky portable chargers, battery cases offer a streamlined solution, eliminating cable clutter. They provide extra power while offering protection for your device.

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, such as NFC or port access, or adding excessive bulk. Wireless and quick charging capabilities further enhance convenience. However, some cases fall short, proving too bulky or unreliable. This guide highlights five top-rated battery cases for popular smartphones.

Looking for a new phone? Explore our recommendations for the best phones, including top-rated Androids, iPhones, and gaming phones.

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 generally lasts a full day with moderate use. However, intensive tasks like photography, social media, or gaming deplete the battery faster. The Mophie Juice Pack provides a significant boost, extending usage time considerably. Its compact design adds minimal bulk and weight, making it easy to carry. It offers excellent drop protection (up to 6ft) and raised edges protect the screen and camera. Note: It does not support 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 drained by power-hungry apps. ZeroLemon's case provides ample extra power (approximately 1.5 extra charges) with its dual 5,000mAh batteries. LED indicators display battery levels. Its rugged design offers military-grade protection, but adds significant bulk and weight.

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 battery can struggle with heavy use. The Mophie Juice Pack Wireless provides a full charge, extending usage time significantly. Its slim profile adds minimal bulk, and it includes Qi wireless charging and passthrough charging capabilities.

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 might not last all day under heavy use. The Newdery Battery Case offers nearly two full charges (8,000mAh), extending usage considerably. It supports wireless and fast charging, and maintains NFC and data transfer functionality.

5. Mophie Juice Pack Connect

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### Best Battery Case for Any Phone

### 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; Uses Qi wireless charging; Includes a stand.

CONS: Slightly confusing to attach the adapter.

The Mophie Juice Pack Connect offers a universal solution compatible with various phones. It attaches to the phone via an adapter and uses Qi wireless charging. It also includes a built-in stand.

How to Choose the Best Battery Case

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Selecting a battery case involves balancing battery capacity, size, and price. Consider whether you need a case for daily use or as a backup. High-capacity cases may sacrifice features like quick or wireless charging. Prioritize a case that fits comfortably and adds minimal bulk while offering sufficient protection.

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. Smartphones monitor charging to prevent overcharging. Overheating is a potential concern if the case lacks adequate ventilation.

### Should you drain your battery case before charging?

No, fully draining lithium-ion batteries can damage them, reducing their capacity over time.