BenzWorld Junior Member
Date registered: Jan 2011
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W126/Diesel battery choices
I recently got a 1985 300SD. The car came with an undersized battery (I think 600CCA) that the previous owner had installed. Well, after draining the battery over 4 months with the aftermarket stereo (I was at school), it's dead and I need to replace it. I live in New England.
The stock size is Group 49. Those batteries are about 850CCA. I went to a Rayovac dealer today and found one. But, they also had a truck battery (I forget the size) that rates at 1150CCA. Dimensionally it was about the same, except it was about 1/2" taller than the 49.
The truck battery is about $20 cheaper (I have a commercial account).
I want to try to put the bigger battery in and see if it fits. As long as I run the vent hose under the car, is there any reason I should NOT try to do this?