Explanation:
This is a Samsung tablet from 2014, currently has LineageOS 18.1 (Android 11), the last it can get. Since it’s unused I did a little experiment until I find someone who will use it. Today I have found so here is the post.
After charging it to 100%, I disabled Wi-Fi connection, put it on battery saving mode and it’s been on for more than 2 months. Battery is still in good condition after all these years I guess. :)


Wow, 2 months? How big is the battery!?
Looks like the current version of Accubattery works on Android 7!
If you install it and then do a full charge cycle (15%-100%) it can determine battery health by how much power is required for that charge cycle.
It’s not perfect, but I’ve found it pretty effective at predicting my run times over the last 10 years/half a dozen different phones.
I’d even upgrade this from mildly interesting to interesting!
It’s not that surrpisingly, they doesn’t use it at all and the rom is Lineage;
i once remove all google bullshit from a shitty 80€ phone and used it as server for a discord bot, it would last roughly a week per charge, it also had a version of android that was way too heavy for such a cheap phone, if i had installed Lineage and an older version (android 7?) It would’ve lasted way more probably
Yeah, not having anything Google related surely increase the battery health. Also mental health.
Apparently 8220 mAh o.0
Don’t know the size though.
Actually maybe can try this before handing the tablet over. Though it would take another 2 months so maybe not . :)
Decently sized, impressive runtime for that capacity.