PeachParts Mercedes-Benz Forum - View Single Post - Automatically preventing batteries from accidentally emptying themselves

pawoSD · #3 03-06-2009, 01:44 AM

Modern cars (as in, like after 1993ish) have had features like that forever. In fact, tonight I was working on my uncle's '96 chevy cavalier....and left the trunk open, after 10 mins the light shut off. Lowering and raising the trunk lid powers it back up. Same for the interior light.

Our caravan shuts off the lights after they've been left on for 15 mins.

On an older car, the solution is to remember to close your doors! Who forgets to close the door on their car? I can't even fathom that....

Also, the average MB battery is big and powerful enough to run the dome lights for like 2 days.....so overnight accidental shouldn't be an issue if you have the correct battery (and a healthy one) installed in the car. I've left my dome light on (switched on) in the car overnight before....it had no effect on the battery.

They've been selling a device that monitors current usage on the battery when the car is off for ages....its like "the battery saver" or something....if it detects an abnormal flow for a certain amount of time (like your lights left on) it cuts power. Then it resets when you start the car.