Premium Member 2002 SLK230K
I have a problem keeping a charge in my battery. A little history; over the winter i took the battery out of the car and placed it on a trickle charger all winter. This past month i took the car out of storage for the season, ran the car at idle for an hour then took it for a short ride. One hour later the battery was dead, i took the car to a local parts store and had the charging system tested, all was good. I had the store charge the battery, went home and it was dead. i checked all cables and all looks good. Either the battery is dead (2 years old) and the test was done wrong or there is somthing draining the battery fast. Any ideas??