Joelwatts
New member
I’ve had this charger working fine for 4.5 years. It just stopped charging when the engine is running, seemingly at random. The charger seems to charge after the house battery ground has been disconnected and reconnected. It will then charge when the engine is started the first time, then it will charge again after each time the engine is started, up to three or four times, then it will stop charging when the engine is started until the battery ground is disconnected and reconnected. The house battery is a Renogy lifepo smart 100ah. I’ve checked all the fuses and the ignition signal wire and everything checks out. It seems like the charger just turns itself off after a few starts. Or could it be a battery problem?