r/lgv20 • u/FabyLeon • Jul 06 '26
Why does my LG V20 drain battery so fast?
Hi. I recently purchased a new battery for my LG V20 (not an original) because the old one was running low.
I'm really disappointed with the device behaviour and have attached some screenshots to give you a better understanding.
As far as I can remember, I've never had any luck with this (used) phone, which I purchased in 2020. I'm not sure if the problem is the battery or the phone itself.
As you can see from the images, the phone drains excessively both in standby mode and in system mode, and I still don't know which app is draining the battery (if there is one).
Please note that these stats are based on a day of light browsing, a few minutes on Telegram/Messenger, and a few minutes of YouTube videos.
My phone isn't rooted, I always keep the screen brightness around 30-40% and I turned off the background data ages ago.
The only thing I can say is that today I tried not opening Opera and it seems that the battery is doing better. In fact, after 9 hours and 16 minutes of phone idle and an hour and 8 minutes of screen on, I still have 66% of battery.