[ZE551ML] 2.19.40.22 firmware battery charge from 80 to 100 in 2 minutes.

Hello
My firmware version is 2.19.40.22 WW, which I updated from asus website.
Earlier phone was working fine, but after update battery charges from 80% to 100% in just 2-3 minutes & discharges till 70% very quickly. I didnt note the earlier version of the device.
Please anyone guide me which is the best firmware version for ZE551ML, 4gb/32gb version.

Thanks.