We all know that the iPhone 5 battery is not the best thing we've encountered. Fortunately, by attaching an extended battery case, you can almost double the charge, without affecting design so much.

If you’re always in search of an outlet, charger in hand, then it may be time for a change. We’ve got the best iPhone 6 battery cases lined up for your perusal right here.

Heads up, Mophie, Otterbox, and everyone else making iPhone cases with built-in batteries: Apple is jumping into your market. Known for its ability to ...

Our pick. Anker’s Ultra Slim Extended Battery Case is The iPhone 6 battery case with the best combination of good performance, price for the capacity, and least amount of bulk added. It has the ...

Despite predictions from various sources (OK, us) that battery life would be a real killjoy for iPhone owners, most of y’all seem to be doing OK with standard juice. For those who really are ...

Looking to boost the battery life of your iPhone 4 or 4S with a case that has a built-in battery? Here are some of your top choices for extended battery cases.

If you’re looking for the best battery case for your iPhone 6, you want the Incipio Offgrid Express. It has a 3,000mAh battery that can fully recharge your dead phone, and then some; a slim ...

Anker’s Ultra Slim Extended Battery Case is the iPhone 6 battery case with the best combination of good performance, price for the capacity, and least amount of additional bulk.

With its built-in 3,100mAh battery and hard, matte exterior, Trianium's Atomic S Battery Case conveniently charges your iPhone 6 (or 6S) and shields it from everyday bumps and drops. Retailing for ...

The 4000mAh Extended Battery Case for iPhone normally retails for $89.99 and we have it available in our deals store for $39.99. You’ve got your brand new iPhone, ...

The $99 Apple Smart Battery Case adds more juice to your iPhone but isn't made for the elements. An investment of $30 more gets you an even higher capacity battery and waterproof protection.

If your iPhone 8's battery isn't cutting the mustard. Never fear, we've got the best iPhone 8 battery cases to ensure you can see out the day.