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 that's specifically designed 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 are essential for providing extra power to your phone while also offering protection against damage. It's crucial to choose a case that doesn't interfere with your phone's features like NFC or ports and doesn't add excessive bulk. Features like wireless and quick charging can enhance the convenience of battery cases. However, some models might make your phone too bulky or fail to provide a reliable charge. To help you make the right choice, we've selected five top battery cases for popular smartphones on the market.
In the market for a new phone? Check out our current recommendations for the best phones to buy right now, plus our best-reviewed Android phones, iPhones, and phones purpose-built for gaming.
Battery cases not your thing? We've also got hand-picked guides for other useful phone accessories like wireless and portable chargers, and screen protectors to save your iPhone 16 Pro from any fall damage.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0Experience enhanced protection and extended battery life with the compact design of this battery case designed for the iPhone 16 Pro. See it at AmazonProduct SpecificationsCapacity2,800 mAhSize6.5" x 2.9" x 0.71" Weight3.5 ouncesPROSCompact and lightweightIncludes integrated passive magnet for accessoriesCONSLimited battery sizeThe iPhone 16 Pro's 3,582mAh battery typically lasts throughout the day with moderate use, but activities like taking pictures, scrolling, or gaming can quickly drain its power. The Mophie Juice Pack Battery Case for iPhone 16 Pro adds an additional 2,800mAh to extend your phone's battery life. The case easily connects to the phone via the USB-C port and features an indicator light to monitor battery levels, as well as a stand-by mode to prevent overcharging.
While the Juice Pack may not offer as much extra battery life as other options, it provides a significant 50% boost to the iPhone 16 Pro's battery, maintaining a compact form that adds minimal bulk and weighs only about 3.5 ounces. The phone remains easy to handle and fits comfortably in a back pocket or bag, making it one of the best iPhone accessories available.
This case also offers robust protection for the iPhone, with drop protection up to 6 feet, and raised edges to safeguard the screen and camera from scratches and cracks. Mophie includes an integrated passive magnet for attaching to various accessories, though it does not support wireless charging.
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, equipped with two 5,000 mAh 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 With its substantial 4,685mAh battery, the iPhone 16 Pro Max might seem like it doesn't need additional power. However, for those who want to enjoy extended sessions in Cinematic Mode or Apple Arcade gaming without worrying about battery life, the ZeroLemon Battery Case is ideal. It features two 5,000mAh batteries that provide about 1.5 additional charges, with LED indicators to monitor the charging status and battery levels.
The case's military-grade protection and shockproofing ensure your phone remains safe. While the additional 10,000mAh capacity makes it bulkier, it's well-suited for users with larger hands. The case supports 18W fast charging, allowing your phone to reach full charge in approximately two hours. However, it does not support data passthrough or wired headsets via the USB-C port when attached.
Mophie Juice Pack Wireless
Best iPhone SE Battery Case
### Mophie Juice Pack Wireless
0Power up your iPhone SE with this slim, lightweight protective case, featuring a 2,525mAh battery and Qi wireless charging compatibility. 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, boasting impressive performance on the latest iOS at an affordable price. However, its 2,018mAh battery may struggle to last a full day with intensive use. The Mophie Juice Pack Wireless provides a full charge, helping you stay away from power outlets longer.
Beyond extending daily usage, this case adds a layer of protection in a slim design that doesn't add significant bulk. It includes short-circuit, over-charge, and temperature protection to keep your device safe. You can recharge the case and phone simultaneously on a wireless charger, and the passthrough technology allows you to connect a lightning cable or headphones without removing the case.
Newdery Battery Case
Best Samsung Galaxy S25 Case
### NEWDERY Battery Case
0Boasting an 8,000 mAh battery, compact design, and wireless charging, the NEWDERY Battery Case for the Samsung Galaxy S25 offers substantial power and convenience. See it at AmazonProduct SpecificationsCapacity8,000 mAhSizeNot listedWeight2.82 ouncesPROSDisplay shows charging percentagesSupports wireless chargingCONSDifficult to remove phone from caseThe Samsung Galaxy S25 features a high-capacity 4,000mAh battery, yet heavy usage can quickly deplete it. The Newdery Battery Case provides an additional 8,000mAh, nearly two full charges, ensuring you can use the phone's demanding features, such as cameras or gaming, without running out of power or adding excessive bulk.
This case 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, and offers wireless charging compatibility, though USB-C fast charging is quicker. The TPU and PC materials used in the case provide robust protection against potential 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
1Enhance your phone's battery life with this versatile, universal battery pack that attaches 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 adapterWhile battery cases are great, they often become obsolete when you upgrade your phone. The Mophie Juice Pack Connect offers a solution that can work with your current and future devices. Unlike a traditional case, it doesn't cover your phone but attaches a battery pack via a small anchor point on your phone or case.
With the Juice Pack Connect, you can easily attach the 5,000mAh battery pack whenever needed. It uses Qi wireless charging, making it compatible with a wide range of 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
Selecting the right battery case isn't just about finding the one with the highest capacity, which can result in a bulky item that's difficult to carry. The ideal choice involves balancing battery capacity, size, and price.
If you're only planning to use the battery case occasionally, a portable charger might be more suitable. There's no need for a case molded to your phone if you won't use it regularly, as this could limit space for additional battery capacity. The best battery case will fit comfortably in your pocket or bag without adding too much weight or bulk, while also offering protection for your phone.
Choosing a high-capacity battery case often means sacrificing features like quick charging and Qi wireless charging, which are important if you want to keep the case on your phone at all times. Wireless charging is particularly useful for simultaneously charging your phone and the battery case.
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, switching to its own battery once the case is depleted. Smartphones are equipped with technology to monitor and prevent overcharging. The main concern is overheating, which can be mitigated by ensuring the case has proper ventilation.
Should you drain your battery case before charging?
No, it is not necessary to drain lithium-based batteries in battery cases before charging. Fully draining the battery can actually cause damage and reduce its capacity over time.
