We’ve rounded up a variety of battery cases for the best phones on the market. Whether you have the latest version from Apple, Samsung, or Google, you should find something useful here. And, if you see a case that you like but have a different smartphone model, you might be able to find multiple versions of the same case that will work with different phones.
TL; DR – These are the best smartphone battery cases:
1. Newdery battery box
Best battery case for iPhone 12 and 12 Pro
Apple might offer more battery life in the new iPhone 12 and iPhone 12 Pro than in its phones of the past, but that doesn’t mean you won’t want a way to give your device extra mileage away from outlets. . The Newdery battery box will do just that with a built-in 4800mAh battery, and since both phones are the same dimensions, you can use it with either.
The Newdery Battery Case slips over your iPhone like any other case, giving it a little extra protection, and it doesn’t interfere with features like Apple Pay or wired headphones. When you need to charge it up, you can even throw it on the same wireless charger you would use with your phone.
2. Alpatronix battery box
Best iPhone 12 Pro Max Battery Case
If you picked the iPhone 12 Pro Max, it’s probably because you like it big. But, if the battery inside isn’t large enough to keep up with your screen time or heavy use of its cameras, Alpatronix has the answer.
The Alpatronix battery box matches the size of your iPhone 12 Pro Max with its own size in the form of a 6000mAh battery. This will help you give your phone a ton of extra battery life. And, since this case wraps around the back and sides of your phone and includes a screen protector, it can help extend the life of your phone in general.
3. Casely Power 2.0 charging case
Best iPhone SE 2 battery case
the iPhone SE (2020) is a great little phone, especially considering that it offers so much performance and the latest version of iOS for such a low price. But, one thing he doesn’t have much of is the battery. With just 1821mAh of battery capacity, it can struggle to last a whole day if you spend a lot of time on it. Casely has the answer with the Casely Power 2.0 Charging Case.
This case can provide iPhone SE full charge, leaving you away from power outlets twice as long. And, when you need to recharge, you won’t need to remove the case. You can plug in the case with a Lightning cable or place it on a wireless charger. This means there is no problem turning the case on and off, and less risk to your phone when it is outside the case.
4. Anerai battery box for Samsung Galaxy S20 Plus
Best Samsung Galaxy S20 Plus case
You don’t have to worry about running out of juice on your new Samsung Galaxy S20 Plus with the Anerai battery box. With its 7000mAh capacity, this case is ready to more than double the battery life of the Galaxy S20 Plus. It just connects to your phone because you can just slide your phone into it. In addition to charging your phone directly in the case, the USB port can be used to charge another mobile device via a USB cable. So with this case, you won’t have to worry about running on a 5G network by draining your battery too quickly.
5. Newdery LG G8 ThinQ battery box
Best LG G8 battery box
The LG G8 ThinQ has plenty of battery to power it, but if you like serious gaming or want to be sure that you can enjoy videos with maximum brightness and HDR enhancements, you might need a extra power. The Newdery battery box is designed to more than double the power of the LG G8 ThinQ and can even fully charge the phone in about two hours. It fits the exterior of your LG G8 and you don’t need to remove it when you plug it back into a wall outlet. The case can protect you from a dead battery, but also protects the back and sides of the phone from being dropped.
6. Newdery Battery Case for Google Pixel 5
Best Google Pixel 5 battery case
The Google Pixel 5 may have a power-efficient chip and a fairly robust 4,080mAh battery, but that doesn’t mean you won’t want to extend your battery life every now and then. With the capabilities of 5G, the bright six-inch screen, and the powerful onboard cameras, you’ll likely be using the Pixel 5 a lot. So a battery box is a smart buy.
The Newdery Battery Case for Google Pixel 5 provides protection for the phone and effectively doubles the available battery. It comes with a built-in 4700mAh battery, so you can play games, watch movies, and take photos at your leisure. Although this adds a bit of thickness to the phone, it only weighs 100 grams. And you don’t have to remove it frequently, because it can charge the phone even while it’s charging.
What to look for in a battery box
You might think that choosing the right battery case for your phone is just a matter of choosing the one with the highest capacity, but it’s a surefire way to buy something that’s too big to fit in your pocket and end up leaving home all the time. Choosing the right charging case comes down to finding the right balance between battery capacity, size and price.
If you’re just looking for a battery case to throw in your bag when you need it, you might as well get a portable charger. There’s no point in buying something molded to fit your phone if you never slip it inside the charging case, leaving only space that could otherwise have been used to accommodate more energy cells. With that in mind, find a battery case that will fit in your pocket without adding too much weight.
Another problem with choosing the larger capacity battery is that this is often its only feature. All of the larger capacity battery boxes we’ve seen sacrifice fast charging and Qi charging capabilities to store more power. This last feature is important if you want to keep the continuation of charging on your phone at all times and convenient to wirelessly charge both your phone and the battery case at the same time.
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Mark Knapp is a regular contributor to IGN and an irregular tweeter on Twitter @ Techn0Mark