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Hi guys! So I got a new Nexus 7 today for Christmas and have been loving what I seen of it. However, I decided it might be a good idea to run it down at least once and then fully charge it again. It was like 5 hours ago now that I plugged it in. When I hit the power button, it shows the battery with lightning thing and the battery filling up. Is something wrong? Should it normally take this long for first charge? Is there a way to boot it and see what percentage it's at? Also, it came with 4.1 and I was planning to upgrade to 4.2. However I read one place that the upgrade results in performance loss. Is this true?

asked Dec 25 '12 at 20:48

ryebread761's gravatar image


You're charging a fairly large battery over USB, it's not going to be blazing. The Nexus 10 is also apparently pretty bad with its charging times.

As far as 4.2 is concerned, I've heard reports of the N7 being a bit slower, but the fix is to disable Google Currents background updates, setting it to only check for new feeds when you launch the app should alleviate the issue.

Otherwise, I've had nothing but a great experience running 4.2, granted though I've been running CM10.1, a community supported ROM based on 4.2.1 AOSP.

I would take the update to 4.2, if you don't like it then you can restore it back to 4.1 via the factory images on Google's website.

answered Dec 25 '12 at 22:22

Zbob750's gravatar image


Thanks for the input :) I'll be sure to do that when I update to 4.2 then! Not going to root it though, at least not for now while I'm still getting familiar with these crazy new "Androidy" surroundings. 68% now! it's been like 8 hours.... I think this'll just happen the first time. At least I hope.

(Dec 25 '12 at 23:39) ryebread761 ryebread761's gravatar image

Well depending on how big the battery is (No idea, on the size of an N7 battery off the top of my head) it could take that long simply because it's a big battery. My tablet usually gets me through about one and one half days of heavy usage, so obviously it takes its time charging.

Regardless, I hope you enjoy your Nexus 7

(Dec 25 '12 at 23:42) Zbob750 Zbob750's gravatar image

Thanks so much :)

(Dec 26 '12 at 00:34) ryebread761 ryebread761's gravatar image

when charging you can boot it up with no problem

and if you need to calibrate the battery then the process just involves running it don to the voltage cutoff point, then charging it non stop to 100% (during which time you can use it just don't unplug it)

answered Dec 25 '12 at 21:03

Razor512's gravatar image


So how would I make it boot? Hold the button?

(Dec 25 '12 at 21:12) ryebread761 ryebread761's gravatar image

That worked. Looks like it is just taking its time with the first charge :-\

(Dec 25 '12 at 21:57) ryebread761 ryebread761's gravatar image

I remember on some batteries if your charging it through the USB port from your computer it may take a little bit longer since it is not drawing current like what they used to do if you plugged it into the wall outlet where you could draw a normal amount and charge it faster. similar idea with my GPS. When I had it plugged through the USB connection via my cigarette light. It would take about 6-7 hours to charge it from 1-2% to 100%. Where as plugging it into a wall outlet and the proper power plug it would take about 2.5 hours to completely charge up.

(Dec 26 '12 at 00:51) Compucore Compucore's gravatar image

Good to know :-)

(Dec 26 '12 at 19:51) ryebread761 ryebread761's gravatar image

I just received one as well, while using, I pluged it in to my PC, it barely charged within 12 hours, and then overnight still nothing, this morning I plugged it into an outlet and it charged within 3 hours, and has been fine since.

answered Dec 26 '12 at 19:59

pjob797's gravatar image


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Asked: Dec 25 '12 at 20:48

Seen: 753 times

Last updated: Dec 26 '12 at 19:59