Charging time

[Michael Phan1]

Hi everyone... i just got a google nexus 7 and was using the charger that it had come with... it takes forever to charge even when i turn the unit off so there would be no usage at the time... i tried to charge it off of my samsung note 2 charger and off the computer... it is still the same... does anyone have any tips that would help? thanks a bunch

 

[wunderbar]

how long is "forever?" i.e. how long is it taking to charge 50% or so, or all the way to 100%

and the charger for the note 2 will be slower than the OEM charger, charging it off a computer even more so. the charger for the note 2 will only provide half the power of the tablet charger, off of a computer only 1/4 the power.

 

[bigtroutz]

charging to 100% using 120 volts (wall current) should take less than 3 hours. If you are not getting that kind of speed, then I would 1st try purchasing a cheap replacement. If that did not work, return the Nexus 7 unit for replacement.

This unit works fine for the N7: Amazon.com: PowerGen Dual Port USB 2.1A 10W AC Travel Wall Charger - White: Electronics

This cable (from Anamax) also works fine: Amazon.com: USB to Micro-USB Cable - 6 Ft.: Electronics

 

[Michael Phan1]

i get home from work at 8am... the battery life is about 30%... i leave it to charge all day til about 3pm... and usually it is only about 70% if im lucky

 

[wunderbar]

That could be a problem with the charger that it came with then. Do you have another tablet charger you can test it with? (ipad, kindle fire, etc)

 

[philba]

i get home from work at 8am... the battery life is about 30%... i leave it to charge all day til about 3pm... and usually it is only about 70% if im lucky

Are you leaving the tablet on when charging? It will take longer in that case.

How many charge cycles have you been through? In the several N7s I've owned, I noticed that the first couple of charges seemed to take a really long time. However, all of them got to the point where they were charging rather quickly. 3-4 hrs for a full charge with the stock charger/cable seems reasonable. Is either the charger or tablet getting hot when it charges? If you get an alternate charger, make sure it can deliver 2 Amps. Phone chargers generally deliver 1 Amp or less and will take at least twice as long.

Also, try not to let your tablet run down to 30% every time. You will get much longer battery life if you keep it topped off. LiPos can be recharged 1000s times from 80% before wearing out but significantly fewer times from 30%.

 

[Michael Phan1]

Thank you for those tips... ill try them all out... it hasnt been thru many cycles of charging yet... but i will try a different charger again and yea i've been turning it off to see if there is a difference... no difference though... maybe it is the charger hopefully =)

 

[Ryan Murphy2]

yeah somethings wrong there...my N7 was at 30% last nite i charged it for an hour and fifteen minutes to and hour and a half and it was at 96%.

 

[jpash549]

For those who like to follow battery charging and discharging on the N7 try Battery Graph free in Play Store.

From my N7 or BBPB or HPTP or HP Laptop