inputs.text: great product idea qaulity - user ctek battery chargers several different models several years never problehem products seen product awhile back finally got around ordering one started amazon prime account hardwired vehicle installed little panel opening dash panel chevy express van working designed 3000 watt pure sinewave inverter installed drain battery sometimes using without charger engine running thing not aware blinks colors assumption status lights would solid little manual not state anything contact ctek find outi would not hesitate purchase itehem acts great little indicator charge level plus plug charger right opening port rubber cover