- Sep 23, 2010
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And there is a bonus... every phone I've ever used with AA, there has been slight but steady battery drain during use. The 500mAh charge from my cars usb port was never enough to charge while using. Well, with my S8+, I used AA for a 30min drive and was VERY surprised to see my battery percentage actually went UP while using. And I was listening to music while also using maps for navigation. Must be the phone being far more efficient, because I'm using the same 500mAh port.