RE: BatteryMinder
I've used a BatteryMinder 12248, with the battery temperature sensor, on my large house bank of AGM's on our sailboat for off-season maintenance/conditioning and they've performed very well. In fact, when my onboard charger failed this year in Mexico, I had a visitor fly in with in a second 12248 and used the two to provide our daily battery charging for five weeks. (I don't know of any sailboats that use converters, all
12v power is from the batteries). That was very heavy use in a marine environment.