Best battery cases for Samsung Galaxy S8 and S8+
Mophie Juice Pack Case
Buy ($99.95): Galaxy S8 | Galaxy S8+
ZeroLemon Ultra Power Case
Buy ($59.95): Galaxy S8 | Galaxy S8+
This ZeroLemon case is not among the prettiest products here, and its bulkiness certainly doesn't help in this regard. However, the case excels in one important regard, as it's got an 8500 mAh battery that's ready to nearly triple the life of your phone's battery. You're also getting all-round protection for your handset, and an LED power indicator. All cases come with 180 days (6 months) ZeroLemon Guarantee Warranty, as well as a 30-day Amazon full refund guarantee.
Trianium Atomic Pro Case
Buy: Galaxy S8 ($35.99) | Galaxy S8+ ($39.99)
The Trianium Atomic Pro cases can double the battery life of your Galaxy S8 or Galaxy S8+, as they include 4500 mAh, and 5000 mAh cells, respectively. These are two-piece cases, including a bumper frame and a hard-shell backplate for comprehensive protection. An LED battery level indicator is on board, too. Unfortunately, the Trianium Atomic Pro won't let you charge your Galaxy S8 wirelessly, but at least fast charging is supported. Oh, and you're also getting lifetime warranty.
BrexLink Battery Case
Buy ($39.99): Galaxy S8 | Galaxy S8+
Here's another reliable case that will double the battery life of your beloved Samsung Galaxy S8 or Galaxy S8+ (thanks to 5000 mAh, or 5500 mAh capacities). Made by BrexLink, the case will do a fine job at keeping your phone safe, as well as at preventing overheating when charging. 1.5-year warranty is included.
WingYeah Slim Battery Case
Buy: Galaxy S8 ($34.99)
At 0.55 inches (14 mm), this WingYeah case is thinner than all the other options on this list, and yet it still manages to pack a 4200 mAh battery inside. The case is quite elegant, comes with 1-year warranty, and can be purchased in three color versions: black, black pearl, and pink. Sadly, the WingYeah case is available only for the Galaxy S8, so S8+ owners have to look elsewhere.
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