The best portable chargers are an excellent way to extend the battery life of your smartphone or other devices. However, many of these can be quite bulky. A battery case offers a more streamlined solution designed specifically for your phone, eliminating the hassle of managing cables associated with traditional power banks.
TL;DR – The Best Smartphone Battery Cases:
### Mophie Juice Pack Battery Case
0See it at Amazon
### 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
1See it at AmazonBattery cases not only add extra power to your phone but also offer protective benefits. It's crucial to select a case that doesn't obstruct your phone's features like NFC or ports and doesn't add excessive bulk. Features like wireless and quick charging can make battery cases even more convenient. However, some options may make your phone too bulky or fail to provide a reliable charge. To help you make an informed decision, we've selected five top-rated 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 gaming-focused models.
Battery cases not your thing? We've also curated guides for other essential phone accessories, such as wireless and portable chargers, and screen protectors to safeguard your iPhone 16 Pro from falls.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0This battery case for the iPhone 16 Pro offers a compact design, extra power, and robust protection. See it at AmazonProduct SpecificationsCapacity2,800 mAhSize6.5" x 2.9" x 0.71" Weight3.5 ouncesPROSCompact and lightweightIntegrated passive magnet for accessoriesCONSLimited battery sizeThe iPhone 16 Pro's 3,582mAh battery can last throughout the day with moderate use, but activities like photography, social media browsing, or gaming can deplete it quickly. The Mophie Juice Pack Battery Case adds an additional 2,800mAh, ensuring your phone lasts longer. The case easily slots onto the phone and into the USB-C port, and an indicator light shows the battery levels. It also features a stand-by mode to prevent overcharging.
Although the Juice Pack doesn't offer as much additional battery life as some other options, the 50% boost to the iPhone 16 Pro is significant. Its compact design adds minimal bulk, weighing only 3.5oz, making it easy to handle and carry. This case is one of the best iPhone accessories available.
It also provides excellent protection, rated for falls up to 6ft, and features raised edges to protect the screen and camera from scratches and cracks. While it includes an integrated passive magnet for various accessories, it does not support wireless charging.
ZeroLemon Battery Case
Best iPhone 16 Pro Max Battery Case
### ZEROLEMON Battery Case
0This rugged case for the iPhone 15 Pro Max provides safety and power with two 5,000mAh batteries and military-grade protection. See it at AmazonProduct SpecificationsCapacity10,000 mAh (2 x 5,000 mAh)Size6.74" x 3.48" x 0.99"Weight8.5 ouncesPROSMilitary-grade protection and shockproofingSupports 18W fast chargingCONSNo data passthrough The iPhone 16 Pro Max's 4,685mAh battery might seem sufficient, but if you're using features like Cinematic Mode or Apple Arcade, you'll appreciate the extra power from ZeroLemon's battery case. It provides about 1.5 additional charges with its two 5,000mAh batteries, and LED indicators show the charging status and battery levels.
ZeroLemon's case offers military-grade protection and shockproofing, ensuring your phone stays safe. While it's bulkier due to the added 10,000mAh capacity, it's ideal for those with larger hands. It supports 18W fast charging via USB-C, fully charging your phone in about two hours. However, it does not support data passthrough or wired headsets when attached.
Mophie Juice Pack Wireless
Best iPhone SE Battery Case
### Mophie Juice Pack Wireless
0This slim, lightweight case for the iPhone SE includes a 2,525mAh battery and supports Qi charging. See it at AmazonProduct SpecificationsCapacity2,525mAhSize2.81" x 4.14 x 0.66"Weight3.51 ouncesPROSSlim, lightweight designSupports Qi wireless chargingCONSOnly provides enough battery for one full phone chargeThe iPhone SE (2022) is a powerful budget smartphone, but its 2,018mAh battery can struggle with heavy usage. The Mophie Juice Pack Wireless offers a full charge, extending your phone's battery life significantly.
This case not only extends battery life but also provides protection without adding much bulk. It includes short-circuit, over-charge, and temperature protection. You can recharge it wirelessly, and it supports passthrough technology for connecting lightning cables or headphones without removing the case.
Newdery Battery Case
Best Samsung Galaxy S25 Case
### NEWDERY Battery Case
0The NEWDERY Battery Case for the Samsung Galaxy S25 offers an 8,000mAh battery, a compact design, and wireless charging. See it at AmazonProduct SpecificationsCapacity8,000 mAhSizeNot listedWeight2.82 ouncesPROSDisplay shows charging percentagesSupports wireless chargingCONSDifficult to remove phone from caseThe Samsung Galaxy S25's 4,000mAh battery is impressive, but heavy use can drain it quickly. The Newdery Battery Case adds an extra 8,000mAh, nearly two full charges, without adding too much bulk.
The case slides onto your Galaxy S25 and plugs into the USB-C port to deliver power. It supports NFC and data transfer even when attached, and you can charge it wirelessly or quickly via USB-C. Made from TPU and PC materials, it offers substantial protection against damage.
This case is also available for the Galaxy S25 Plus and Galaxy S25 Ultra models.
Mophie Juice Pack Connect
Best Battery Case for Any Phone
### Mophie Juice Pack Connect
1This universal battery attaches to your phone, charges it wirelessly, and includes a handy stand. See it at AmazonProduct SpecificationsCapacity5,000 mAhSize2.7" x 4.09" x 0.56" Weight4.4 ouncesPROSUniversal design that uses Qi wireless chargingIncludes a standCONSSlightly confusing to attach the adapterBattery cases can become obsolete when you upgrade your phone. The Mophie Juice Pack Connect is a versatile solution that works with your current and future devices. It's not a traditional case but rather a battery pack that attaches to your phone.
With the Juice Pack Connect, you attach a small anchor to your phone or case, then easily attach the 5,000mAh battery pack when needed. It uses Qi wireless charging, compatible with many smartphones, and can be recharged wirelessly. It also includes a stand for convenient viewing.
How to Choose the Best Battery Case
Choosing the right battery case isn't just about the largest capacity; it's about finding the right balance between capacity, size, and price. If you're only going to use the case occasionally, a portable charger might be more suitable. Look for a case that fits comfortably in your pocket or bag, adds minimal weight and bulk, and offers protection for your phone.
High-capacity battery cases often sacrifice features like quick and wireless charging. If you plan to keep the case on your phone at all times, these features are essential, especially for simultaneous charging of your phone and the case.
Battery Case FAQ
Are battery cases safe for your phone?
Yes, battery cases are safe for your phone if used correctly. Your phone uses power directly from the case, and once the case is drained, it switches to the phone's battery. Smartphones have built-in safeguards to prevent overcharging. The main risk is overheating if the case lacks proper ventilation.
Should you drain your battery case before charging?
No, it's not necessary to fully drain lithium-based batteries in battery cases. Doing so can damage the battery and reduce its capacity over time.
