accent Report post Posted September 20, 2012 My battery is dead after 3 years and 20k miles now I'm trying to find out what caused it. I tested the drain with a multimeter. The current was 12amps for the first a few seconds then drops to 2amps. Is it normal? Share this post Link to post Share on other sites
e350 coupe Report post Posted September 28, 2012 No a 2 amp draw would kill the battery in a day or two you could try pulling one fuse at a time to locate where the draw is. I would first disconnect any accessories or converters/chargers to see if you are still getting this draw. things like phone chargers, 12v/120 volt converts, after market radio's or dc power plugs and fan relays are usually the culprits. Share this post Link to post Share on other sites
accent Report post Posted October 4, 2012 It was a gps charger which killed my battery. Thanks for the reply! Share this post Link to post Share on other sites