Battery replacements are also required when even the slightest scratch or ding to one results from an accident. The car must be towed to an authorized dealer after diagnosing a damaged battery at a repair shop, if not already at a dealer's shop, and have the battery removed. Then, it is towed back to the repair shop to finish repairs. And, after repairs, it is again towed to the dealer for the new battery installation. This is how we had to do it just a few years ago to satisfy safety regs though I've been out of the business for a bit. The supplements to the original estimate could really add up and be quite higher than the same repair to a comparable gas powered vehicle.