Rather than searching for a wall outlet, use the mophie juice pack Galaxy S9 Battery Case to charge up anywhere. Because this battery case is compatible with common Qi wireless setups, you can charge in airports, cafes, and cars. You won’t slow down your friends to search for the needle-in-a-haystack wireless pad that works with your phone case. This power bank case has a built-in 2,070 mAh battery that extends your phone’s battery life for up to 32 hours. This means your phone will stay charged even if you don’t find a wireless charging pad. And this isn’t a case you need to worry about as it has internal rubber supports. Even if your phone falls, this Samsung battery case should protect it.