I had this problem with one cable end and we simply cut out part of the metal ring at the end of the cable, so it could close more tightly. The design of the cable end was such that it could not clamp tightly on a new battery I bought, but this quick fix cured it permanently ... Ben Carter

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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)