
02-22-2014, 03:37 AM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Shasta Lake,
CA
Cobra Make, Engine:
Posts: 26,619
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Not Ranked
I have used the Deltran Battery Tenders on 3 cars for years and no problems. I do have my disconnect switch on the Negative side of the battery in the 69 Cobra and I had to replace that battery last summer and it was 14 years old.
awfink55s suggestion of disconnecting the battery completely and seeing if it happens is a good one. If the battery is over charging, then something is causing the tender/charger to try to charge it. Possible a small short somewhere in the cable or something is drawing a little current all the time.
Ron
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