UPDATE: I've tested and verified that a 2amp charger isn't any faster than 1amp.
The charger that comes with the S3 outputs 1.0 amp (5V), and my old Galaxy S1 Captivate came with a 0.7amp charger. Both are better than the measily 0.5amps that most computer USB ports output, which is barely enough juice for the phone to break even (let alone charge) when you're using your phone with the display brightness at 100%. Obviously the fastest way to charge is with the phone off, or a spare battery, but most of us don't do that.
How many of you are using an aftermarket 2amp usb wall charger without issue, and have you measured how much faster it charges? Also, will this faster charging reduce the S3's battery life, or is it within tolerances and Samsung just cheaped out on the included A/C charger?
As long as it's safe, I'm thinking about buying one of these $10 2amp chargers off amazon...
UPDATE: I read elsewhere that a 2amp charger can't really hurt your phone because there's obviously "smart" circuitry inside that limits the current anyway. If it really is smart, then the upside to 2amps SHOULD BE that when you're charging with the screen on @ 100% brightness, that more juice goes to the battery with the "extra" going to the display, instead of subtracting from what the battery gets.
I'll update again later with BATTERY STATS when I get my charger...
The charger that comes with the S3 outputs 1.0 amp (5V), and my old Galaxy S1 Captivate came with a 0.7amp charger. Both are better than the measily 0.5amps that most computer USB ports output, which is barely enough juice for the phone to break even (let alone charge) when you're using your phone with the display brightness at 100%. Obviously the fastest way to charge is with the phone off, or a spare battery, but most of us don't do that.
How many of you are using an aftermarket 2amp usb wall charger without issue, and have you measured how much faster it charges? Also, will this faster charging reduce the S3's battery life, or is it within tolerances and Samsung just cheaped out on the included A/C charger?
As long as it's safe, I'm thinking about buying one of these $10 2amp chargers off amazon...
UPDATE: I read elsewhere that a 2amp charger can't really hurt your phone because there's obviously "smart" circuitry inside that limits the current anyway. If it really is smart, then the upside to 2amps SHOULD BE that when you're charging with the screen on @ 100% brightness, that more juice goes to the battery with the "extra" going to the display, instead of subtracting from what the battery gets.
I'll update again later with BATTERY STATS when I get my charger...
Last edited:
