I've been using a BatteryMinderPlus on my hotrod for quite a while and it has worked fine for me. I'm pretty sure all the tender type chargers are about the same except for the price... I have an AGM Optima battery in my hot rod and they are more particular about how they are supposed to be charged and I haven't had any problems using this system.

Bob

Never underestimate your ability to overestimate your ability.