Thread: Nexus 7 : Problem Keeping Charged on Long Trips Using Navigation.

Originally Posted by Lankin

That's 3.1 amps, and the OP says he is using a 3.1 amp charger, meaning the OP is getting the same amount of amps from the charger. Like I said earlier lots of people significantly reduce this amperage by using a long tiny gauge cable. And like PCpete said, you need to make sure you are getting AC charging in the settings. If you aren't then you will need to short the middle pins on the charger.

Keep us updated. I always find it annoying that charging cables for android cant keep the unit powered when using all the features...just seems stupid to me.

You should read the XDA thread. I also own a Nexus 7 and I've seen "3.1 amp" power adapters not work because they are complete junk. This one is confirmed to work.

Originally Posted by kegobeer

You should read the XDA thread. I also own a Nexus 7 and I've seen "3.1 amp" power adapters not work because they are complete junk. This one is confirmed to work.

You can have a great charger, but it won't do what you want it to do unless you also get a heavy duty cable. One that's thick enough and short enough to carry the current required by the tablet. So the moral of the story is... find the highest quality cable you got (a stock HTC cable works great... or even the one that came with the tablet) and try charging it again.

Just because the charger is 3.1A does not mean that that is what it is consuming.

Maybe your tablet is consuming more than his...

Or maybe its battery is worn.


PS - I love the amazon comment Charging will be automatically stop when battery is full. Der! Why even bother mentioning that - it has nothing to do with the charger!

I'm using this USB ROM on my Nexus 7 install with no charging issues. You can enable fast charge and it automatically goes to sleep and enables airplane mode when you turn off the vehicle (as long as that also turns off the power source to the tablet)

http://mehrvarz.github.io/nexus-7-usbrom/