I’ve been using the TS’s ROMS since the end of 2015 on my mi4c.
So far, no matter what, I was able to get somewhere between 3h-3h45m SoT; once got 4h30m but it never happened again.
My battery got worn lately (ie. phone was switching off at about 30%) – ordered a new one, replaced – it got better in terms no surprise at 30% level, but not much better battery life from charge to charge
So, I thouhgt I’d flash latest xiaomi.eu MIUI ROM to delete all leftovers and so on and reflash CM13.1 to see how battery life changed. Imagine my surprise to discover that I got less than 2h SoT within 12 hours of use! I didn’t install anything new – just flashed MIUI, run it for couple of hours, hated it, reflashed latest CM13.1 by TS and restored my TWRP backup. xda’s BBS show absolutely nothing unusual, about 5% of being awake at screen-off-time which I consider a good result.
Can that be explained? What I am supposed to do to get back my previous batt life? I hoped to get closer to 5h SoT that some reported to achieve, but it turned out it’s gotten much worse.
Same here, my phone turned off one time at 10% on time on 15%. I tried to reset it by deleating the battery file with 100% battery and used till it turned off.. had around 25% left. something isnt right