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I've heard some of the batteries in C5s are not the best. Sometimes I can go two weeks between driving my 2003 C5 only to find the battery too weak to start the car. So I have to put the charger on and jump start it. Is this normal?
I've heard some of the batteries in C5s are not the best. Sometimes I can go two weeks between driving my 2003 C5 only to find the battery too weak to start the car. So I have to put the charger on and jump start it. Is this normal?
I agree this is a "typical problem" with the DElco family of batteries. Either replace with an Optima or use a Battery Tender. I do both on my 5 year old Optima Red Top that is on its second C5. The Battery Tender keeps the battery at peak (assuming that its a good battery).