New User Rant: Disappointing and deal-breaking battery drain experience on Xiaomi 15
I recently bought a pre-owned Xiaomi 15 (Chinese ROM) with 97% battery health. I am from Bangladesh; even a fresh-condition used Xiaomi 15 is expensive for me, so coming from my 2-year-old potato Galaxy M35 to the Mi 15 was a big leap, with even bigger excitement.
Anyway, the battery drain I have been facing since buying wasn’t something I even thought of. It is shocking. I do not game. All my phone activity is taking photos, watching YouTube, using Messenger and Instagram, and occasionally using maps when I am out and about. On top of that, I am not even a whole day doom scroller; I have an active life. So my phone use is not constant. Yet I struggle to get through the day on one charge.
My 2-year-old Galaxy M35 is still doing a better job than this far newer Xiaomi 15 phone. I have already been tweaking the options like: battery restrictions, autostarts, battery protection, and every other setting to check and minimize apps unnecessarily draining the battery. Yet, no improvement.
My point is that, if I have to painstakingly tweak every possible setting just so that the phone battery doesn’t kill itself every 12 hours, while my old phone has been doing an excellent backup job without me ever going through all that anxious manual labour, then it could only mean that the software is not doing its job to keep the battery running normally. Tbh, compared to the OneUI on my M35, this HyperOS has been so far really a crappy downgrade. It's such a shame that I have to replace such a snappy-performing phone with a great-looking camera if this battery issue is not fixed.
(TL;DR - Just came off of a 2-year-old Galaxy M35 and this only 5-months used Xiaomi 15 is already giving noticeably worse battery backup with no gaming, just using camera, music, YouTube, social media, 5G turned off. So I blame the sloppy software for this battery disaster. Does Xiaomi have any past history of fixing this specific issue with a software update? )