If you’re looking to give a big boost to your iPhone’s battery life, then these battery cases for iPhone 16 Pro Max are a must-have for you. These cases are capable of doubling an iPhone’s battery capacity while also providing heavy-duty protection to the device from all sides.
Despite adding a big battery to the device and providing all-around protection, these cases do not add too much bulk to the iPhone and maintain a relatively slim profile, which makes them perfect for outdoor activities.
Read on to learn about the best iPhone 16 Pro Max battery cases that you can buy in 2025.
Rechargeable Battery Cases for iPhone 16 Pro Max
1. mophie Juice Pack Battery Case
The mophie Juice Pack Battery Case is a game-changer when it comes to keeping your iPhone 16 powered up and ready for anything. With a built-in 3,600mAh battery, this sleek case offers up to 50% extra power, giving you more time to enjoy your music, movies, and memories, even when you’re on the move. You won’t have to worry about running low on battery during those long days or exciting trips.
What’s great about this case is its slim design. Despite providing enhanced protection, it’s lightweight and easy to slip into your pocket without any added bulk. Plus, it offers an impressive 6-foot drop protection, ensuring your iPhone stays safe from everyday bumps and drops. It even features a built-in magnet for secure attachment to wallets, vent mounts, and stands, so you can keep your phone handy without worrying about it sliding off.
Thanks to Priority Plus Charging, your iPhone 16 charges first, followed by the Juice Pack itself, meaning your phone gets the power it needs, right when you need it most. Made with eco-friendly materials, this case is a perfect example of how iPhone battery cases can be both functional and sustainable, with a USB-C port for convenient charging.
Key facts:
- Battery Capacity: 3,600mAh
- Color: Black
- Material: Plastic
- Price: $99.95
2. NEWDERY Upgraded Battery Case
The NEWDERY Upgraded Battery Case for the iPhone 16 Pro Max is a must-have for anyone on the go. With its powerful 8000mAh battery, it provides up to 150% extra battery life, ensuring your phone stays charged throughout the day, no matter how busy you are. This case doubles as a portable power bank, allowing you to charge multiple devices while out and about.
One of the standout features of this case is its dual-function charging port. Thanks to advanced chip technology, it supports Type-C input and output, and you can even recharge the case while wirelessly charging your iPhone 16 Pro Max. Plus, both wireless and USB-C charging can happen simultaneously, so you can power up without missing a beat.
In addition to boosting your battery life, the iPhone 16 Pro Max battery cases ensure you don’t lose any essential phone functions. You can still use data transfer, CarPlay, wired headphones, and Apple Pay without any hiccups. Designed for 360° protection, this case features a raised bezel to protect your screen and camera lens, while its anti-slip side edges provide a secure grip, making it the perfect companion for both daily use and outdoor adventures.
Key facts:
- Battery Capacity: 8,000mAh
- Color: Black
- Material: TPU
- Price: $29.59
3. Alpatronix Battery Case
The Alpatronix Battery Case transforms how you use your iPhone 16 Pro Max by keeping your phone powered up wherever you go. No more worrying about running out of battery—this innovative solution is a must-have, especially if you’re tired of relying on external power banks. With battery cases for iPhone 16 Pro Max like this one, power is always right at your fingertips.
The case is designed to charge your phone and the battery simultaneously without the need to remove it, ensuring your iPhone gets powered first. If you need a quick recharge of the case, just remove it and charge separately to restore power faster.
Built for durability, this battery case offers solid protection against drops and daily wear, thanks to raised bezels and a tough tempered glass shield. Plus, it supports both wireless and cable charging, allowing you to charge your iPhone and the case together or separately for maximum convenience. With the Alpatronix Battery Case, you get both protection and extra battery life, making it the perfect addition to your iPhone 16 Pro Max.
Key facts:
- Battery Capacity: $39.96
- Color: Black
- Material: Plastic and Rubber
- Price: $39.96
4. GIN FOXI Battery Case
The GIN FOXI Battery Case for the iPhone 16 Pro Max is the perfect solution for anyone constantly on the go. Designed to be slim and lightweight, it ensures that your phone stays powered up without adding unnecessary bulk. With an impressive 8500mAh battery, this case provides an additional 150% battery life, making it an excellent choice for travel, work, or long days when you’re far from an outlet. The slim battery case for iPhone 16 Pro Max combines convenience with functionality, allowing you to stay connected all day long.
Not only does it charge your phone, but it also supports data syncing without the need to remove the case. Whether you’re connecting to your MacBook, PC, or laptop, you can seamlessly sync your phone’s data while keeping it powered. The charging case also allows for simultaneous charging, prioritizing your phone before powering up the case itself.
With 15W fast charging, you can go from 0% to 50% in just 30 minutes, saving you time and ensuring your phone is always ready to use. Plus, it includes advanced protection features—such as overcharging, overheating, and short-circuit protection—to safeguard your phone from damage. The case also offers complete protection from daily wear and tear, ensuring your iPhone stays safe and charged no matter where life takes you.
Key facts:
- Battery Capacity: 8,500mAh
- Color: Black
- Material: TPU
- Price: $31.99
5. ZENEE Battery Case
The ZENEE Battery Case is the perfect solution for keeping your iPhone 16 Pro Max powered up and ready to go, no matter where life takes you. With its ultra-slim design, it’s about the same size as your phone, so you won’t even notice it’s there until you need it. Weighing only 3.3 ounces – roughly the same as an egg – this lightweight case won’t weigh you down, making it an ideal companion for those on the go.
But don’t let its size fool you! The ZENEE Battery Case packs a punch with an upgraded 8500mAh capacity, which can provide up to 1.5 to 2 full charges for your iPhone 16 Pro Max. Whether you’re out for a day of travel or need extra power during a busy workday, this case has got you covered. Plus, it offers 360° protection, keeping your phone safe from scratches and everyday wear and tear.
The smart pass-through function lets you charge both your phone and the case simultaneously, so you never have to worry about running out of power when you need it most. With a built-in intelligent IC chip, this case provides multiple layers of protection, including overcharge, overcurrent, and short-circuit safeguards, ensuring both your device and the case are safe and secure while charging.
Key facts:
- Battery Capacity: 8,500mAh
- Color: Black
- Material: PC, TPU and ABS
- Price: $31.99
Conclusion
These are the best battery cases for iPhone 16 Pro Max for 2025. They add crucial battery capacity to the iPhone while providing multi-layer protection to the device. So if you are looking to boost your device’s battery life, then these cases are the way to go.
