About Remote Battery Disconnect Switch This is a switch that can remotely control the car battery power on and off, by shutting off the battery you can avoid battery damage caused by long term parking. It is easy to operate just need to press the button of the remote control to realize the remote control of car battery power on and off, no need to open the hood frequently to operate manually. It has a feedback function, when the remote control sends a command, the switch receives the command to determine the action will be feedback instructions to the remote control, tell the remote control I have been in accordance with the instructions required action, so you can know the real state of the switch, not like no feedback function need to guess whether the switch is off the battery, from the face of avoiding the problem of sometimes did not turn off the battery.