The best portable chargers are a fantastic way to keep your smartphone or other devices powered up on the go. However, these devices can often be bulky and cumbersome. A battery case offers a sleeker alternative, tailored specifically to your phone, and eliminates the hassle of managing cables associated with traditional power banks.
TL;DR – The Best Smartphone Battery Cases:
### Mophie Juice Pack Battery Case
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### 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 adding extra power to your phone while also offering protection from damage. It's important to choose a case that doesn't interfere with your phone's features, such as NFC or ports, and doesn't add unnecessary bulk. Features like wireless and quick charging can significantly enhance the convenience of battery cases. However, not all battery cases are created equal; some can make your phone overly bulky or fail to provide a reliable charge. To help you find the perfect battery case, we've selected five top options for the most popular phones on the market.
In the market for a new phone? Check out our current recommendations for the best phones to buy right now, including our top-rated Android phones, iPhones, and devices specifically designed for gaming.
Battery cases not your thing? We've also curated guides for other useful phone accessories, such as wireless and portable chargers, and screen protectors to keep your iPhone 16 Pro safe from any accidental drops.
Mophie Juice Pack Battery Case
Best iPhone 16 Pro Battery Case
### Mophie Juice Pack Battery Case
0Experience robust protection, additional battery life, and a compact design with the Mophie Juice Pack Battery Case 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 a full day with moderate use. However, activities like photography, social media scrolling, or gaming can quickly drain its power. The Mophie Juice Pack Battery Case adds an extra 2,800mAh, extending your phone's life significantly. The case easily attaches to your phone and connects via the USB-C port. An indicator light keeps you informed about the battery levels, and a standby mode prevents overcharging.
While the Juice Pack doesn't offer as much extra battery life as some other options, its 50% boost to the iPhone 16 Pro's battery makes a significant impact. The case remains surprisingly compact, adding minimal bulk and weighing just 3.5 ounces. Your phone remains easy to handle and fits comfortably into a back pocket or bag, making it one of the best iPhone accessories available.
This case also provides excellent protection, rated for falls up to 6 feet, helping to prevent the panic that comes with accidental drops. Raised edges protect the screen and camera from scratches and cracks. While it includes an integrated passive magnet for attaching to various accessories, it does not support wireless charging.
ZeroLemon Battery Case
Best iPhone 16 Pro Max Battery Case
### ZEROLEMON Battery Case
0Protect and power your iPhone 16 Pro Max with this rugged case featuring 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 The iPhone 16 Pro Max's massive 4,685mAh battery may seem sufficient, but heavy use, such as filming in Cinematic Mode or playing games on Apple Arcade, can drain it quickly. ZeroLemon’s battery case provides peace of mind with its two 5,000mAh batteries, offering about 1.5 extra charges. LED indicator lights show the charging status and battery levels.
ZeroLemon’s case is built tough, offering military-grade protection and shockproofing to safeguard your phone from damage. While it adds significant bulk and is best suited for users with larger hands, the 10,000mAh capacity is a worthwhile trade-off. When plugged into the case via USB-C, your phone benefits from speedy 18W fast charging, reaching 100% in about two hours. Unfortunately, there's no support for data passthrough or wired headsets when the case is attached.
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 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 chargingCONSOnly provides enough battery for one full phone chargeThe iPhone SE (2022) is a powerhouse budget smartphone with impressive performance on the latest iOS. Yet, its 2,018mAh battery can struggle to last a full day with heavy use. The Mophie Juice Pack Wireless offers a full charge, keeping you away from power outlets for longer.
In addition to extending battery life, this Mophie case adds a layer of protection without adding much bulk. It includes 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 your phone. 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
0With an 8,000 mAh battery, compact design, and wireless charging capabilities, the NEWDERY Battery Case for the Samsung Galaxy S25 offers a lot. See it at AmazonProduct SpecificationsCapacity8,000 mAhSizeNot listedWeight2.82 ouncesPROSDisplay shows charging percentagesSupports wireless chargingCONSDifficult to remove phone from caseThe Samsung Galaxy S25 boasts a high-capacity 4,000mAh battery, but intensive use can deplete it quickly. The Newdery Battery Case provides an additional 8,000mAh, offering nearly two full charges without adding significant bulk.
The case slides onto your Galaxy S25 and connects via the USB-C port to deliver power. It maintains NFC and data transfer capabilities through the USB-C port. For those with a wireless charger, you can recharge the case and phone together, while fast charging via USB-C gets you back to 100% quickly. The TPU and PC materials offer 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
1Experience the versatility of this universal battery that 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 adapterA battery case is great, but what happens when you upgrade your phone? The Mophie Juice Pack Connect offers a 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 point to your phone or case, then slip on the 5,000mAh battery pack as needed. It uses Qi wireless charging, supporting a wide range of smartphones and allowing for wireless recharging. It also comes with a stand, perfect for watching videos or reviewing documents.
How to Choose the Best Battery Case
Selecting the right battery case isn't just about finding the largest capacity. That approach can lead to a case too big to carry comfortably. The ideal charging case balances battery capacity, size, and price.
If you're only planning to use a battery case sporadically, a portable charger might be a better choice. There's no need for a case molded to your phone if you won't use it consistently, which could allow for a higher energy capacity. The best battery case should fit comfortably in your pocket or bag without adding excessive weight or bulk, while also providing protection for your phone.
High-capacity battery cases often sacrifice features like quick and Qi charging to accommodate more power. These features are crucial if you plan to keep the case on your phone constantly, especially for simultaneous wireless charging of both the phone and the 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 have built-in mechanisms to monitor and prevent overcharging. The main concern is overheating, which can be mitigated by choosing a case with proper ventilation.
Should you drain your battery case before charging?
No, it's not necessary to fully drain the lithium-based batteries in battery cases. Doing so can actually damage the battery and reduce its capacity over time.
