The best portable chargers are an essential tool for extending the battery life of your smartphone or other devices. However, these power banks can often be cumbersome. A battery case offers a more streamlined alternative specifically designed 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 not just about adding extra power to your phone; they also provide protection against damage. It's important to choose a case that doesn't hinder your phone's features such as NFC or ports, and doesn't add excessive bulk. Features like wireless and quick charging can significantly enhance the convenience of these cases. However, some battery cases can make your phone overly bulky or fail to provide a reliable charge. To help you find the perfect fit, we've curated a list of five top battery cases for popular smartphones.

**In the market for a new phone?** Check out our latest recommendations for the best phones to buy, including our top-rated Android phones, iPhones, and devices designed specifically for gaming.

**Battery cases not your thing?** Explore our carefully selected guides on other useful phone accessories, including wireless and portable chargers, and screen protectors to shield your iPhone 16 Pro from fall damage.

1. Mophie Juice Pack Battery Case

Best iPhone 16 Pro Battery Case

### Mophie Juice Pack Battery Case

0Enhance your iPhone 16 Pro with a combination of protection, additional battery life, and a sleek design. 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 an integrated passive magnet for accessories

CONS:

• Limited battery size

The iPhone 16 Pro's 3,582mAh battery is typically sufficient for a day's moderate use, but activities like photography, social media browsing, or gaming can drain it quickly. The Mophie Juice Pack Battery Case adds an additional 2,800mAh, helping your phone last longer. Simply attach the case to your phone via the USB-C port, and an onboard indicator light will show you the battery levels. The case also features a stand-by mode to prevent overcharging.

While the Juice Pack may not offer as much additional battery life as some other options, it provides a significant 50% boost to the iPhone 16 Pro. Its compact design adds minimal bulk, weighing only 3.5oz, making it easy to handle and slip into a pocket or bag. This makes it one of the best iPhone accessories you can find.

The case also offers excellent protection, rated for drops up to 6ft, which can save you from the panic of accidental drops. Raised edges further protect the screen and camera from scratches and cracks. Although it includes an integrated passive magnet for attaching to accessories, it does not support wireless charging.

2. ZeroLemon Battery Case

Best iPhone 16 Pro Max Battery Case

### ZEROLEMON Battery Case

0Ensure your iPhone 15 Pro Max stays safe and powered with this rugged case, featuring two 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 hefty 4,685mAh battery, demanding tasks like using Cinematic Mode or playing games on Apple Arcade can drain it rapidly. ZeroLemon's battery case addresses this with two 5,000mAh batteries, providing around 1.5 extra charges. The case features LED indicator lights to monitor charging status and battery levels.

Built with military-grade protection and shockproofing, this case offers robust protection against damage. However, its 10,000mAh capacity makes it bulkier, ideal for users with larger hands. When connected via USB-C, the case supports speedy 18W fast charging, fully charging your phone in about two hours. Unfortunately, it does not support data transfer or wired headsets through the USB-C port when attached.

3. Mophie Juice Pack Wireless

Best iPhone SE Battery Case

### Mophie Juice Pack Wireless

0Boost your iPhone SE's battery life with this slim, lightweight 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 a powerful budget smartphone, yet its 2,018mAh battery may struggle to last a full day with intensive use. The Mophie Juice Pack Wireless case provides a full charge, extending your phone's uptime and reducing the need for frequent charging.

This case not only extends your phone's battery life but also protects it with a slim shell that doesn't add much bulk. It features short-circuit, over-charge, and temperature protection to keep your device safe. When it's time to recharge, simply place it on a wireless charger to juice up both the case and the phone. Passthrough technology allows you to connect a lightning cable or headphones without removing the case.

4. Newdery Battery Case

Best Samsung Galaxy S25 Case

### NEWDERY Battery Case

0Maximize your Samsung Galaxy S25's battery life with an 8,000 mAh battery, compact design, and wireless charging. 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 high-capacity 4,000mAh battery, but heavy use can deplete it quickly. The Newdery Battery Case provides an additional 8,000mAh, offering nearly two full charges without adding excessive bulk.

The case slides onto your Galaxy S25 and connects via the USB-C port to deliver power. Even with the case attached, the USB-C port supports NFC and data transfer. You can also charge the case and phone wirelessly, though USB-C fast charging is available for quicker top-ups. The case's TPU and PC materials offer robust protection against potential damage.

This case is also available for the Galaxy S25 Plus and Galaxy S25 Ultra models.

5. Mophie Juice Pack Connect

Best Battery Case for Any Phone

### Mophie Juice Pack Connect

1Experience the versatility of 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

Traditional battery cases can become obsolete when you upgrade your phone. The Mophie Juice Pack Connect offers a versatile solution that can work with your current and future devices. This isn't a traditional case; instead, it's a battery pack that attaches to your phone.

To use the Juice Pack Connect, you attach a small anchor point to your phone or case, then easily slip on the 5,000mAh battery pack when needed. It uses Qi wireless charging, making it compatible with various smartphones and allowing for wireless recharging. Additionally, it comes with a stand for hands-free viewing of videos or documents.

How to Choose the Best Battery Case

Choosing the right battery case isn't just about selecting the one with the largest capacity. You need to balance battery capacity, size, and price to find the ideal fit. If you only need a charger occasionally, a portable charger might be more suitable than a case that's molded to your phone but rarely used.

Consider whether the case will fit comfortably in your pocket or bag without adding too much weight or bulk, while still providing adequate protection. High-capacity battery cases often sacrifice features like quick charging and Qi charging, which are crucial if you plan to keep the case on your phone continuously.

Battery Case FAQ

Are battery cases safe for your phone?

Yes, battery cases are safe for your phone as long as they are used correctly. The phone draws power directly from the case, and once the case's battery is depleted, it switches to the phone's battery. Smartphones are designed to monitor battery health and prevent overcharging. The primary concern is overheating, which can be mitigated with proper ventilation in the case design.

Should you drain your battery case before charging?

No, there's no need to fully drain the lithium-based batteries in battery cases. Completely discharging them can actually damage the battery and reduce its capacity over time.