50/10/2a fully automatic starter/charger with 2 leds, ul, fully automatic & has led lights to keep you informed of charger's operation, 50a engine start, for emergency starting, 10a fast charge for everyday charging needs, charges in 3 to 5 hours, 2a trickle charge, charges a small 12v battery in 2 to 12 hours, 2 led lights signal power on & fully charged, fully automatic, will not overcharge batteries. non-compliant in ca & or. suggested replacement: tv #176879 / se-5212a-ca