bad charging and battery problem?
Hi all,
Following problem this time :
Samsung galaxy tab 3 8 inch tablet is working fine : battery percentage is ( for example) 56 percent. one second further the tablet says : only 4 percent left , please charge ...
sometimes the battery is dead, i recharge the tablet , but a few seconds later i see that there is 80 percent battery ?
also charging is soooo %#*@ slow... for example : 2 hours of charging for 10 percent battery ....
could it be the battery ? ( it will be the 3rd battery in 2 years)
could it be the charching port? bad connection?
how do i measure this on the battery and or the charching port?
could it be something else?
i always use a genuine charger , and also tried an other charger... ( offical charger) ...
thanks in advance
Update (06/22/2017)
Hey Guys thanks for the help so far.
I opened the tablet,measured out the battery :
6 wires :
2 x 0.0 VDC on black wires
1 x 0.0 VDC on yellow
1 x 0.32 VDC on yellow
2 x 3.72 VDC on red wires.
( measured 4 times to be sure.)
now measured out the charging port : ( as good as i could ) i measured 5.05 VDC on that connector.
(measured 2 times ...)
so it looks okay ... i gues, what do you guys think?
problem on the main board? bad or faulty diode or capacitor or...
The battery is already ( under warranty) replaced 2 times (once at 6 months old and now 5 months ago) . and 1 time the charging port... i think thats not quit normal.
the tablet is now 2.5 years old. and out of warranty. i could replace the charging port and battery but here in belgium those parts cost 60 euro ... so i have to be sure..
좋은 질문입니까?
댓글 2개
Hey guys.
Did the Voltage check again, and again the same measurements.
I still think it is a main board problem.. ?
Like i sayed the battery is replaced 2 times under warranty... and 1 time the charching port? I realy don't think thats normal...
i checked all the connections , and those are good. Cleaned the contacts , still the same problem.
sometimes the battery is at 80 procent, than suddenly 40 procent , than dead and when i plugged the charcher in, i have again 60 procent.....
strange ...
I could renew the battery and charching port, but here in belgium you pay like 60 euro for that....
What do you guys think ?
Kevin D 의
Kevin D, yes it is possible the charging circuit on the board is bad if all else looks good and board may need replaced or a good repair shop(micro soldering) check and replace charging circuit. Good luck with your phone.
L Pfaff 의