1. AC Question's Avatar
    I know the Samsung fast charger charges the phone at 5V, 2 ampere current. I also know the phone can be charged on old (slower) chargers at about 0.2 ampere or some current. But my question is whether or not it is safe to charge the phone on any current between 0 and 2. Will using a 5V, 1.8 ampere LG charger harm my phone battery?
    01-18-2017 08:42 AM
  2. Rukbat's Avatar
    As long as the charger can supply more current than the phone is using, the battery will charge. (The charger doesn't push current into the phone, the phone draws current from the charger - the amount it's designed to draw.) 5 Volt, 1.8 Amps will work fine. Even 5 Volts, 1,000 Amps will work fine, because the phone will probably be drawing 1.4 Amps in either case. (Your house probably supplies 200 Amps, but a 100 Watt light bulb draws only 1 Amp. The same bulb, screwed into a socket at the power station, which supplies hundreds of thousands of Amps, will still draw 1 Amp.)
    01-18-2017 02:58 PM

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