H guys I have a question about the convenience battery in a 2003 SL500, I broke my ankle about 10 weeks ago, so the caronly got driven for about 20mins to 30mins every week for the lst 10 weeks, i am back driving the car myself now, but the dash always says electric consumers offline, and it take 12-15 mins to charge up. However as soon as i turn the ignition off even after a long drive,( I have been driving the car at least an hour a day now for the last 5 days), the electric consumers are off line again. Does this mean I need to get a new battery? and if so where can I get one from and how much will it cost and can I fit it myself!? Thanks a lot guys for your help!! I cant believe how much I missed driving!!:bannana::bannana: