I have heard that choosing a battery with more cold cranking amps than the original, will shorten the life of the battery. Is this so?
No! while the purchase of a stronger battery may cost more then needed for the given application, it has no problem for the rest of the car. The larger battery actually can give you more amperage and make the starter work easier.The battery requires less charging and after each start cycle it will also make the alternator last longer because the battery will recharge much faster.
