Rebuild Service for a Zefon 497702 battery pack. For the cost of this service, we will open the battery pack, replace all cells, and reassemble. The performance of our battery packs is better than a brand new battery from the OEM but at a fraction of the cost. Send your battery into us and let us make it work as good as new. Our trained technicians work on Zefon brand batteries often. We rebuild all types of Zefon brand batteries including those used in diagnostic equipment. Don't wait any longer. Send your 497702 battery pack in to us for repair today!