Another Tablet Cubby Thread (Nexus 7)

[Mr&Mrs]

Thanks man, this is all the tricky charging stuff I have been reading. The way you described it makes alot more sense than some of the other inflated topics on it I found.

This: Car Charger Seems to be the one alot of the people have used that works. One reviewer made a very detailed post on it but confused me a little when I read it at 3 this morning Do you think this will work? If it does I can run an extra cord into my glove box for my wifes devices to charge on the road as well.

BTW I will hand out reps for all the help from you guys when I get a chance. Im popping in and out from work right now.

Originally Posted by LostSol

So basically charging a device with a microUSB like your nexus works like this. There are 4 pins in the charger port, 1 through 4. 1 is positive power, 2 is positive data, 3 is negative data, and 4 is ground. While you could hack it and just use pins 1 and 4, pins 2 and 3 are important because if the android operating system doesn't see a specific constant voltage being applied across these two pins, the tablet will only charge in "USB" mode, drawing a max of 500 mA. What you need is an android friendly charger that will trick the tablet into thinking its plugged into a wall allowing it to enter "AC" charging mode and draw as much amperage as is safe for the device. I use a USB plug in charger that delivers up to 2100 mA, which is what I would suggest you do, no cutting, no mess, no fuss.

Keep in mind your screen on, Bluetooth running, and multiple apps are capable of drawing at least 1500 mA, so you'll constantly lose charge unless you do this correctly.