We’ve rounded up a variety of battery cases for the top phones on the market. Whether you’ve got the latest from Apple, Samsung, or Google, you should find something useful here. And, if you see a case you like but have a different smartphone model, you may be able to find multiple versions of the same case that’ll work with various phones.
TL;DR – These are the Best Smartphone Battery Cases:
1. Newdery Battery Case
Best iPhone 12 and 12 Pro Battery Case
Apple might be offering more battery life in the new iPhone 12 and iPhone 12 Pro than it had in its phones from the past, but that doesn’t mean you won’t want a way to give your device some extra mileage away from power outlets. The Newdery Battery Case will do just that with a built-in 4,800mAh battery pack, and since the two phones have the same dimensions, you can use it with either one.
The Newdery Battery Case slips over your iPhone like any other case, giving it a bit of extra protection, and it doesn’t interfere with features like Apple Pay or wired headphones. When you need to top it back up, you can even throw it onto the same wireless charger you’d use with your phone.
2. Alpatronix Battery Case
Best iPhone 12 Pro Max Battery Case
If you’ve picked up the iPhone 12 Pro Max, it’s likely because you like things big. But, if the battery inside isn’t proving large enough to keep up with your screen-time or extensive use of its cameras, then Alpatronix has the answer.
The Alpatronix Battery Case matches your iPhone 12 Pro Max’s size with some size of its own in the form of a 6,000mAh battery. That’ll help ensure you can 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 give your phone a longer life 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 when considering it offers so much performance and the latest version of iOS for such a low price. But, one thing it doesn’t have a whole lot of is battery. With just 1,821mAh of battery capacity, it can struggle to last through a whole day if you’re spending much time on it. Casely has the answer with the Casely Power 2.0 Charging Case.
This case can deliver a full charge to the iPhone SE, letting you go for twice as long away from power outlets. And, when you do need to top back up, you won’t need to remove the case. You can plug the case in with a Lightning cable or set it on a wireless charger. That means no fuss getting the case on and off, and less risk to your phone when it’s outside of the case.
4. Anerai Battery Case 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 Case. Thanks to its 7,000mAh capacity, this case it ready to more than double the battery life of the Galaxy S20 Plus. It attaches to your phone simply, as you can just slide your phone down into it. On top of charging your phone directly in the case, the USB port can be used to charge another mobile device over a USB cable. So, with this case, you won’t have to worry about running on a 5G network draining your battery too quickly.
5. Newdery LG G8 ThinQ Battery Case
Best LG G8 Battery Case
The LG G8 ThinQ has plenty of battery to power it, but if you’re into some serious gaming or want to be sure you can enjoy videos with the brightness and HDR enhancements peaked, you might need some extra power. The Newdery Battery Case is designed to more than double the power for the LG G8 ThinQ, and can even fully charge the phone in about two hours. It fits around the outside of your LG G8, and you don’t need to remove it when you’re plugging back into a wall outlet. The case can protect you from a dead battery, but also protects the phone’s back and sides from falls.
6. Newdery Battery Case for Google Pixel 5
Best Google Pixel 5 Battery Case
The Google Pixel 5 may have an energy-efficient chip and a fairly beefy 4,080mAh battery, but that doesn’t mean you won’t want to stretch your battery life every now and then. With the capabilities of 5G, the bright six-inch display, and the powerful cameras onboard, you’re likely to use the Pixel 5 a lot. So, a battery case is a smart buy.
The Newdery Battery Case for the Google Pixel 5 offers protection for the phone and effectively doubles the battery available. It comes with a built-in, 4,700mAh battery, so you’ll be able to game, watch movies, and shoot photos to your heart’s content. While it does add a bit of extra thickness to the phone, it only weighs 100 grams. And, you don’t have to frequently take it off, as it can charge the phone even while it’s being charged.
What to Look for in a Battery Case
You might think picking the right battery case for your phone is just a matter of picking the one with the biggest capacity, but that’s a surefire way of buying something too big to fit in your pocket and end up leaving at home all the time. Choosing the right charging case comes down to hitting the right balance between battery capacity, size, and price.
If you’re looking for just 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’re never going to slip it inside of the charging case, which just leaves space that otherwise could have been used to fit more energy cells. With that in mind find a battery case that’ll actually fit into your pocket without adding too much weight.
Another problem with choosing the highest capacity battery is that it’s often its only feature. All of the highest capacity battery cases we’ve seen sacrifice quick charging and Qi charging capabilities for storing more energy. That latter feature is important if you like to keep the charging chase on your phone at all times and handy for wirelessly charging both your phone and 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