I've just bought a new BV9800 Pro and I'm facing with a lot of issues with the battery.
The charge is quite low (ok, big capacity could be the reason for that) but I've seen battery life is really too short even if I'm not using the cell so heavily or continuously.
I've tested it by installing commons apps and using it as a std smartphone (WhatsApp, FB, SMS, camera, no gaming, no video, no long calls, no GPS) and battery stands for about 12-13 hours. From 100% at 7 am to 5% an 8 pm, roughly.
I've also tried to restore it at OEM configuration but the issue is still there. As addition, I've seen the charge is lost even if the mobile is switched off.
I would like to use this mobile also as GPS during my trips in motorbike but, with this issue, is impossible for me.
Any suggestion or check I can take a look in order to fix the problem?