Our minivan suffers from non-recoverable engine problems, but I put a Bosch battery, group 65, with CCA 850 only a month ago. I hate to loose my investment in that battery when we sell the minivan for parts! Our other car is a '03 Subaru Forester, which takes a group 35 battery, and I considering whether I might transfer the new minivan battery into the subaru. I’m aware of some of the issues, but I’d like your opinions of whether it is technically ok and safe.
Here’s what I know. The group 65 battery has the ‘+’ terminal on the left, while the group 35 battery has the ‘+’ terminal on the right. Isn’t it ok to turn the group 65 battery around (180degrees) which puts the ‘+’ terminal on the correct side, altho about 3 inches closer to the firewall. (I haven’t yet checked to see whether the terminal cables will be compatable with this slightly different location.)
The group 65 battery weights 10-lbs more, but I don’t think that’s an issue.
The group 65 battery is 2-1/8 inches wider, one half inch deeper, but 1-3/8 inches shorter. I believe I have to be concerned whether cooling air flow is reduced by this different battery profile. I believe I have to be concerned whether the existing securing strap for the taller group 35 battery can be cranked down the extra 1-3/8 inches to tightly grip the group 65 battery. Do you have any experiences about these issues?
Is there a matching of charging capacity of the alternator with the battery that might make replacing a group 35 battery of 640 CCA with a more powerful group 65 battery with 830 CCA?
What do you think? I hate to waste a 1 month old, powerful battery when I might be able to use it in my remaining car.