Charging problem !!Please help

[ZaynChew]

I wanna ask about my phone that only used for 7month when i newly brought it charge well and take about 2 to 3 hours to fully charge and now my phone facing a problem i charge it for 5 to 6 hours and and my phone just completely charged.
I am using original Samsung charger and also battery,original ROM with non root my cable also work well is that my battery facing failure?? And one more thing during my phone is charging
1.airplane mode on
2.wifi off
3.NFC off
4.Bluetooth off
5.GPS off
6.S beam off
7.power sawing on
8.mobile data off
My phone is currently runing android 4.1.2 and using wall socket not USB charging
Please help !!i wan know that truth and claim with warranty or master reset to solve my issue !!Thanks

 

[Rukbat]

1) If you use the phone more between charges, it'll take longer to charge.

2) If you abuse the battery (let it overheat, leave it in a hot car, freeze it), it'll start taking longer to charge and it'll hold the charge for less time.

As far as the condition of your phone and battery, no one can say without seeing them.

 

[ZaynChew]

I lock my screen when charging just leave it overnight until morning and also my battery is in good condition