Battery Backup comes with 2x 12v1.3Ah batteries and is a standard lead acid battery. The battery backup powers your garage door motor during power outages. The battery backup is only compatible with our Absolift motors. Our battery backups allow you to open your garage doors even during loadshedding. It opens the door up to three times between recharges and needs to be replaced about once every six months (during load shedding). Only compatible with Absolift motors.