🇬🇧 🇩🇪 Water (drops) damaged Volume up button / Stuck in recovery/fastboot

[Johannes]

Seems normal:

Can FP2 operate without battery?

It looks like a stupid question but for stationary use and to not strain the battery, I think it will be useful if you could remove the battery and have the phone running on a charger. I know there are smartphones who can work without battery and others don’t. I obviously don’t want to risk any damage, so I won’t just try it. Is there anyone with experience in this field or very good knowledge about the battery and charger electronics to answer this question?

I’m not sure I understand the benefit of starting the phone without the battery after suspected water damage - do you have reason to believe (or are you trying to figure out whether) only the battery is damaged?