MobileRead Forums - View Single Post - Can a galaxy tab usb cable charge a nook?

adrianoabma · 01-06-2011, 12:09 AM

The USB 2.0 standard is normally expecting 1 amp out of it's power. Galaxy needs 2 amps. When you see the red on you battery charging, I would expect samsung to have placed a protection to reduce the amperage been pulled from the usb port so you wouldn't burn your usb port / device (not sure).

In simple words your device draws more than a usb can give so if you are actively using it you will run out of power, but if it's sitting on stand by with the screen off, it will eventually charge.

Expect 2 to 3 times longer than with the samsung adapter.

The car adapter/holder is a good option too and it will suck 2 amps out of your car, so be careful with battery exhaustion on your car, winter and galaxy tab you worst battery enemies.

01-06-2011, 12:09 AM	#7
adrianoabma Junior Member Posts: 1 Karma: 10 Join Date: Jan 2011 Device: galaxy tab	Charging on plain 1 AMP USB The USB 2.0 standard is normally expecting 1 amp out of it's power. Galaxy needs 2 amps. When you see the red on you battery charging, I would expect samsung to have placed a protection to reduce the amperage been pulled from the usb port so you wouldn't burn your usb port / device (not sure). In simple words your device draws more than a usb can give so if you are actively using it you will run out of power, but if it's sitting on stand by with the screen off, it will eventually charge. Expect 2 to 3 times longer than with the samsung adapter. The car adapter/holder is a good option too and it will suck 2 amps out of your car, so be careful with battery exhaustion on your car, winter and galaxy tab you worst battery enemies.