Thanks for the info Chris, sounds like a cool device. I can get these at my local electronics store? The voltage is adjustable on it? When is a good voltage to cut the power? 14? 14.6? less then 14? When it gets stuck, it's putting in about 14.6 volts. My inverter settings are Bulk voltage is 14.7 and float voltage is 13.3 for my vented batteries. Thanks for the help?