How do I change the amperage of my charger?

[ssaranga]

change amperage of charger

what happen if i chane 5V/500mA charger to 5V/1.7A charger. is there any effect to phone or battery.

 

[Rukbat]

Re: change amperage of charger

If the phone can draw more than 500mA, it'll charge faster. If it can't, there's no change. (How much it can draw is determined by the design of the phone. It's called the "effective resistance" of the phone, and it determines how much current can be drawn at 5 Volts according to Ohm's Law.)

If your house is supplied with 100 Amp service, then the power company rewires and supplies you with 200 Amp service, a 100 Watt light bulb will still draw the same current. (You don't push current into the phone, the phone draws current from the charger - the same as any electrical load.)