Earlier quoted context omitted.
>n from bloated batteries within the year. Is this from the battery being on the charger constantly? I remember having a similar problem years ago. I thought most devices now would manage charging by letting it drain a bit automatically. At the time though they didn't so I for my continually connected devices I just used simple plug timers that cut it off for a few hours a couple times a day.
There's also the possibility of using Advanced Charging Controller - though it requires root. Essentially you can set it up so when the battery reaches eg. 100% it stops charging, and resumes only once it reaches eg. 15%. Surprisingly the Android devices that I have still don't ever stop charging on their own, constantly keeping 100%. [Advanced Charging Controller (ACC)]( https://github.com/VR-25/acc ) [BU-808: How t…
However, doing that you do have the benefit of having "UPS" protection of course (how much depends on the charge cycle). In my case this isn't really a problem because if my power is down there is not much in my home left to control that still works.
My method has some drawbacks too - it looks bad (though it can be mitigated with a 3D printed enclosure) and sometimes stability may suffer, because tablets and phones use their battery to absorb performance peaks which require high power drain. The DC-DC converter will not live up to the same peak capacity. But generally I have not really seen many issues in practice. The converters stay cool and the tablets don't crash. I think it's because the workloads as a control tablet is not super heavy either. One of the main things that really peaks a lot in phones is the mobile (4G/5G) radio when it transmits and of course I keep them in airplane mode in this usecase.