The standard charger I have is a 1.5 amp. Is okay if I charge with a 2amp or 2.1amp charger without causing battery problems? Will it charge faster? If anyone has tried this I'd appreciate the info
The standard charger I have is a 1.5 amp. Is okay if I charge with a 2amp or 2.1amp charger without causing battery problems? Will it charge faster? If anyone has tried this I'd appreciate the info
and does it matter if I buy a usb 3.0 with that?
Understand that the current rating is basically irrelevant, as long as the voltage is within tolerances... the device PULLS current, it is not pushed into it... if somehow you had a 500 AMP USB charger, it would still be safe to use with the Nexus or just about any other USB device (there are some misbehaved devices though), and it would happily pull it's 1-1.2A with no issues.
There are much greater dangers using an under-rated charger though, they can potentially damage the device or charger if they do not report to the device that they are not capable of what it is trying to pull. Using a cheap 500ma charger is within specs of USB, but if it doesn't report to the phone that it can only do 500ma the phone will continue to try pull 1000ma and potentially overheat and burn out the charger, or even worse, damage it and cause it to fall out of specs and over/undervolt the device, causing the device to become defective.
The point is, use a quality charger with at minimum 1.0A rating and you will be in good shape, exceeding the 1.0A rating will not harm the device, but it will not cause it charge faster either. A 3A charger will charge at the same rate as a 1.0A rated charger.
Correct... I did not make that point clear, thanks for pointing it out.Not quite correct. If the charger can only provide 500ma, then the phone will take forever to charge. The higher the capacity to provide current, the quicker the phone will charge, up to the phones max charging rate, which is controlled by the phone.