Checking for Android battery drainer

top -b -n 1 -o %CPU,%MEM,CMDLINE -s1 -m 20

That is all there is to do upon having access to adb shell whatever way you prefer. Look for high CPU and MEM use an observe the app ID for the truth.

For some reason the system and the battery monitor in settings won’t bring that to your attention.

Bonus points for you if the cause is some app performing CPU locking and heating up your phone due to being unable to access a tracking domain that wishes to spy upon you.

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Dear reader, you may be missing a content blocker! 🙀 Please consider installing one to protect yourself, and your close ones, from manipulation and targeted malvertising!
Privacy Badger will take care of third-party tracking the best, but hiding this message takes a more targeted filter such as uBlock Origin (for Firefox) or uBlock Origin Lite (for everything else).
Additionally considering adblocking DNS services such as DNS4EU Protective Resolution With Ad blocking or public AdGuard DNS may be a good idea to clean up your modern internet.
Learn more about targeted advertising!
PS. I am not sorry if this cosmetic filtering targeting script doesn't detect your protection, because this message brings me too many amused messages and smiles for that (and thus this message is here to stay) 🐾