I have a 12v lead acid marine battery that powers my backup sump pump. I have a trickle charger connected to the battery. Once a month or so I manually run the 12v pump for a cycle or two. This has worked just fine for the past few years. Now I would like to power a rasberry pi + sensors from the 12v battery, using a 12v->5v power adapter (probably just a cigarette lighter USB adapter). I will probably have to put a larger charger on it. I believe I should still use an automatic charger/battery maintainer, but the output must at least equal my draw from the raspberry pi + sensors of course.
I will be switching from a .5A harbor freight battery maintainer to this: (because I already own it) https://www.walmart.com/ip/BLACK-DECKER-BM3B-6V-and-12V-Battery-Charger-Maintainer-BM3B/21721663?
It will charge at 1.2A. Sound ok? Do you see any problems with this plan? Thanks
I will be switching from a .5A harbor freight battery maintainer to this: (because I already own it) https://www.walmart.com/ip/BLACK-DECKER-BM3B-6V-and-12V-Battery-Charger-Maintainer-BM3B/21721663?
It will charge at 1.2A. Sound ok? Do you see any problems with this plan? Thanks