I have a 2 1/2 year old Fairphone 2 running uopen source Android 7.1.2 which I installed last year in an attempt to fully de-Google.
The last week or so, the battery seems to be draining much faster.
When I went to settings to look at battery usage “Miscellaneous” (described as “the difference between the computed approximate power use and the actual drain observed on the battery”) is accounting for a disporportionate amount of the overall use. Right now (since I unplugged from the charger in the wee small hours in a fit of insomnia, to listen to some podcasts on Antennapod) 26% of the battery use is “Miscellaneous”.
I don’t tend to keep lots of apps open at once - I might be in and out of Duckduckgo browser, K9 mail, Telegram, the phone (especially now I’m working at home and using it for lots of business calls) and ordinary text messaging apps on and off during the day, plus Antennapod for a few hours at night if I can’t get back to sleep.
I’m worried in case I might have accidentally picked up some malware that is running in the bckground eating battery life.
I have never had a Google Play account, and I download any apps from either F-Droid, or if not available there, search for them on alternative apk sites like apkpure.
The only app I’ve downloaded in the last month or so (from an alternative apk site) was Moonpig (to order greetings cards, when they weren’t accepting orders through their normal website) and I’ve now uninstalled that.
Not running the normal version of Android, I don’t receive notifications about updates to download (e.g. with the latest security patches).
If it’s not likely to be malware eating my battery, could I need a new battery? I’d rather hope a battery would last longer than 2 1/2 years before getting so tired.
My Fairphone 2 hasn’t been faultless (the main camera works only occasionally - more often than not I have a black screen of doom and serious camera error message - and replacing the camera module made no difference) but I don’t want a new phone.