battery not charging to 100% w890i

[one81]

hi i got my hone last week and i charged it 2 days after battery was out and i recharged it while phone was powered on and when it was charged in phone status it showed battery status 99% and i got same reslut the next time charged it and yesterday
but today when battery was at 4% i plugged in the phone and after 2-3 h it was fullcharged and in phone status it shower 98% now
i charged it while it was powerd on.

what is happening with my phone is it going to show 90% next time
i have a k800 and it shows 100% all time.

is there any problem with my w890i or is it my battery.
what should i do ?
does any one have w890i do they have same problem..

thanks for reading
/Suraj

I suggest you to change your firmware because i have same problem with you but it's ok now after i upgrade my firmware... maybe that is firmware bugs problem...

[source011]

Bad thigns happens all the time :) just wait for a newer firmware :)

[siung777]

Turn off your phone while you're charging. This might help.

[shogun]

Let you phone run down completely befor charging. Hope this helps