Top Smartphone Battery Cases of 2025 Revealed

If you're constantly on the go and need to keep your smartphone powered up, the best portable chargers are a lifesaver. However, these can sometimes be bulky and cumbersome. A battery case offers a more streamlined and tailored solution, eliminating the hassle of managing cables that comes 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

A top-notch battery case not only extends your phone's battery life but also offers robust protection against damage. It's crucial that the case doesn't interfere with essential phone features like NFC or ports, and it shouldn't add unnecessary bulk. Features like wireless and quick charging can make these cases even more user-friendly. However, not all battery cases are created equal; some can make your phone too bulky or fail to deliver a reliable charge. We've curated a list of five exceptional battery cases for the most popular smartphones to help you make the right choice.

**In the market for a new phone?** Explore our latest recommendations for the best phones to buy right now, including our top-rated Android phones, iPhones, and gaming-focused devices.

**Not a fan of battery cases?** We've also compiled guides for other essential phone accessories, such as wireless and portable chargers, and screen protectors designed to safeguard your iPhone 16 Pro from any potential falls.

1. Mophie Juice Pack Battery Case

Best iPhone 16 Pro Battery Case

### Mophie Juice Pack Battery Case

0Experience the perfect blend of protection and additional battery life with this sleek battery case designed for the iPhone 16 Pro. 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 integrated passive magnet for accessories

CONS

• Limited battery size

The iPhone 16 Pro's 3,582mAh battery can handle a day of moderate use, but activities like photography, social media scrolling, or gaming can drain it quickly. The Mophie Juice Pack Battery Case for iPhone 16 Pro extends its battery life with an additional 2,800mAh capacity. The case easily slots onto the phone and connects via the USB-C port. An indicator light keeps you informed about battery levels, and a stand-by mode prevents overcharging.

Although the Juice Pack doesn't provide the largest battery boost compared to other options, its 50% increase in battery life for the iPhone 16 Pro is significant. It remains surprisingly compact, adding minimal bulk and weighing just 3.5 ounces, making it one of the best iPhone accessories you can purchase. It also offers excellent protection, rated for falls up to 6ft, and includes raised edges to protect the screen and camera from scratches and cracks. While it features an integrated passive magnet for 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 charged 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 substantial 4,685mAh battery, you might still need extra power if you're heavily using features like Cinematic Mode or gaming on Apple Arcade. The ZeroLemon Battery Case provides peace of mind with its dual 5,000mAh batteries, which offer about 1.5 additional full charges. LED indicators on the case keep you updated on the charging status and battery levels.

Constructed with military-grade protection and shockproofing, the ZeroLemon case safeguards your phone while delivering an extra 10,000mAh of power. However, its bulkier design may be better suited for those 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 passthrough or wired headsets when attached.

3. Mophie Juice Pack Wireless

Best iPhone SE Battery Case

### Mophie Juice Pack Wireless

0Enhance your iPhone SE's battery life with this slim, lightweight protective case, which 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 an impressive budget smartphone known for its performance on the latest iOS. However, its 2,018mAh battery may struggle to last a full day of intensive use. The Mophie Juice Pack Wireless offers a solution by providing a full charge, helping you stay away from power outlets longer.

Beyond extending your phone's daily usage, this Mophie case adds a protective layer without significant 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 power both the case and your 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

0Equipped with an 8,000 mAh battery, a compact design, and wireless charging capabilities, the NEWDERY Battery Case for the Samsung Galaxy S25 is a versatile choice. 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, which is impressive for its size. However, with heavy use, the battery can deplete quickly. The Newdery Battery Case offers an additional 8,000mAh, providing nearly two full charges without adding significant bulk.

The case easily slides onto your Galaxy S25 and connects via the USB-C port to deliver power. It supports NFC and data transfer even with the case attached. While you can use a wireless charger for recharging, the USB-C port also supports fast charging for quicker power-ups. The case's TPU and PC materials add a layer of protection against potential damage. This model is also available for the Galaxy S25 Plus and Galaxy S25 Ultra.

5. Mophie Juice Pack Connect

Best Battery Case for Any Phone

### Mophie Juice Pack Connect

1Opt for this universal battery that attaches to your phone, providing wireless charging and even including 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

Battery cases can become obsolete when you upgrade your phone, but the Mophie Juice Pack Connect offers a solution that works with your current and future devices. This isn't a traditional case; rather, it's a battery pack that you attach to your phone or phone case via a small anchor point. It uses Qi wireless charging to support a variety of smartphones and can be recharged wirelessly. Additionally, it comes with a stand, perfect for watching videos or reviewing documents.

How to Choose the Best Battery Case

Choosing the right battery case isn't just about opting for the one with the largest capacity, as this might result in a bulky device that's difficult to carry. The ideal case strikes a balance between battery capacity, size, and price.

If you only need a charger to throw into your bag occasionally, a portable charger might be a better fit. Battery cases are designed to be used with your phone, offering both power and protection. Look for a case that fits comfortably in your pocket or bag without adding excessive weight or bulk, while still providing the necessary protection.

Additionally, high-capacity battery cases often lack features like quick or wireless charging, which can be critical if you want to keep the case on your phone constantly. Wireless charging is especially useful for charging both your phone and the case at the same time.

Battery Case FAQ

Are battery cases safe for your phone?

Yes, battery cases are generally safe for your phone as long as they are used correctly. The phone draws power directly from the case, and once the case is depleted, it switches to the phone's battery. Smartphones have built-in mechanisms to monitor battery health and prevent overcharging. The main concern is overheating, which can be mitigated by ensuring the case provides adequate ventilation.

Should you drain your battery case before charging?

No, it's not necessary to fully drain the lithium-based batteries in battery cases before charging. In fact, allowing them to fully discharge can potentially damage the battery over time, reducing its overall capacity.