1 Reply Latest reply: Feb 11, 2013 8:02 AM by Rudegar
Vig-vig Level 1 (0 points)

Can I charge my iPhone 5 with a 2100 ma USB car charger or I will burn the battery?

iPhone 5, iOS 6.1
  • Rudegar Level 7 (25,510 points)

    no problem you can charge it with a 6100 ma usb car charger if you want


    for charging all that matters is

    1. it's 5 volt if it's higher then it will kill the device but if it's higher then 5volts it's in violation of the usb std.

    2, it provide enough ma (mili amps) to charge  there is no max


    ohms law is


    amp = volt / resistence


    the internal resistence of the iphone desice how much amps it will draw amps are drawn not pushed into a device