I do lots of testing of apps in real phones, not emulators.
The thing is that the phones must be connected to the PC all day. Because of this, phones battery get swollen and I have to buy phones regularly.
Do you know any android phone which can be connected and on all day all week without getting swollen after a time?
Must be real phones, emulators are descarted.
Stop constantly charging the battery all day.
Some phones today do have some battery management to prevent overchargring, but it’s fairly limited.
Does the USB spec permit data-only cables (that is, without the power wire)?