The best portable chargers are an essential way to boost the battery life of your smartphone or other devices. However, these power banks can often be bulky and cumbersome. A battery case offers a more streamlined solution, designed specifically for your phone, allowing you to bypass the hassle of managing cables that come 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 crucial protection against damage. They should seamlessly integrate with your phone's features, such as NFC and ports, without adding excessive bulk. Features like wireless and quick charging further enhance their convenience. However, some battery cases can make your phone too bulky or fail to deliver a reliable charge. To help you find the perfect solution, we've selected five top-rated battery cases for leading smartphones.
Looking for a new phone? Explore our latest recommendations for the best phones available, including top Android phones, iPhones, and devices designed specifically for gaming.
Not interested in battery cases? We've also curated guides for other essential phone accessories, including wireless and portable chargers, as well as screen protectors to shield your iPhone 16 Pro from any falls.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0Experience a perfect blend of protection and power with this sleek 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 lightweightIntegrated passive magnet for accessoriesCONSLimited battery capacityThe iPhone 16 Pro's 3,582mAh battery can handle a day of moderate use, but activities like photography, social media scrolling, or gaming can quickly drain it. The Mophie Juice Pack Battery Case adds an additional 2,800mAh, extending your phone's life significantly. It easily attaches to your phone via the USB-C port and features an indicator light to monitor battery levels, along with a standby mode to prevent overcharging.
While the Juice Pack might not offer the largest battery boost, it still enhances the iPhone 16 Pro's battery by 50%, maintaining a compact profile that adds minimal bulk and weighs just 3.5oz. This makes it highly portable and one of the best iPhone accessories you can find.
The case also provides robust protection, with a rating for drops up to 6ft, ensuring peace of mind. Raised edges 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 charged and protected with this rugged case that includes 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 passthroughThe iPhone 16 Pro Max boasts a substantial 4,685mAh battery, yet extended use in modes like Cinematic Mode or Apple Arcade gaming can deplete it rapidly. ZeroLemon's battery case offers a solution with two 5,000mAh batteries, effectively providing 1.5 additional charges. LED indicators keep you informed of the charging status and battery levels.
Built to last, ZeroLemon's case offers military-grade protection and shockproofing, ensuring your phone remains safe. While the added 10,000mAh capacity makes it bulkier, it's ideal for users with larger hands. The case supports 18W fast charging, replenishing your phone from 0% to 100% in about two hours via USB-C. However, it does not support data passthrough or wired headsets when connected.
Mophie Juice Pack Wireless
Best iPhone SE Battery Case
### Mophie Juice Pack Wireless
0Enhance your iPhone SE's battery life with this slim, lightweight case that 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 chargingCONSProvides only one full phone chargeThe iPhone SE (2022) offers impressive performance for a budget-friendly smartphone, but its 2,018mAh battery struggles to last a full day of intensive use. The Mophie Juice Pack Wireless offers a complete charge, allowing you to stay unplugged longer.
This case not only extends your phone's battery life but also provides a protective shell without adding significant bulk. It includes safeguards against short-circuiting, overcharging, and temperature fluctuations. When it's time to recharge, simply place it on a wireless charger. The case also features passthrough technology, enabling you to connect a lightning cable or headphones without removing it.
Newdery Battery Case
Best Samsung Galaxy S25 Case
### NEWDERY Battery Case
0Benefit from an 8,000 mAh battery and wireless charging with the compact NEWDERY Battery Case designed for the Samsung Galaxy S25. 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 for its size, but heavy usage can quickly drain it. The Newdery Battery Case provides an additional 8,000mAh, nearly doubling your phone's battery life, making it ideal for intensive use like gaming or photography without adding excessive bulk.
The case easily slides onto your Galaxy S25 and connects via the USB-C port to deliver power. It retains NFC and data transfer capabilities even when attached. For convenience, it supports wireless charging, while USB-C fast charging ensures quick replenishment. The case's TPU and PC materials offer added 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
1Enjoy a universal battery solution that wirelessly charges your phone and includes a handy stand. See it at AmazonProduct SpecificationsCapacity5,000 mAhSize2.7" x 4.09" x 0.56" Weight4.4 ouncesPROSUniversal design with Qi wireless chargingIncludes a standCONSSlightly confusing adapter attachmentBattery cases are great, but they often become obsolete when you upgrade your phone. The Mophie Juice Pack Connect offers a versatile solution compatible with your current and future devices. While not a traditional case, it effectively attaches a 5,000mAh battery pack to your phone.
To use the Juice Pack Connect, attach a small anchor point to your phone or case, then easily connect the battery pack when needed. It uses Qi wireless charging, supporting various smartphones and allowing for wireless recharging. Additionally, it comes with a stand for convenient viewing of videos or documents.
How to Choose the Best Battery Case
Choosing the right battery case isn't just about finding the highest capacity. That can result in a bulky device that's hard to carry. The ideal case balances battery capacity, size, and price.
If you're looking for something to throw in your bag occasionally, a portable charger might be more suitable. A battery case should fit comfortably in your pocket or bag without adding too much weight or bulk, while also offering protection for your phone.
Opting for the highest capacity can sometimes mean sacrificing features like quick or Qi charging. These features are vital if you plan to keep the case on your phone continuously, especially for the convenience of simultaneous wireless charging.
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 until it's depleted, then switches to the phone's battery. Smartphones are equipped with systems to prevent overcharging. The only potential issue 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 actually harm the battery and reduce its capacity over time.
