Designed and produced by ECAR Golf.This 48V Lithium Golf Cart Battery – PRO-Li Core 105Ah Battery Package for Yamaha G22 (On-board) is designed to seamlessly integrate into all new or existing 48V model Yamaha G22 golf carts. This fully certified, compliant and integrated battery system is best for those looking for approximately 2-3 rounds of golf (or 4-6 hours of use) per charge.*Must be installed by a qualified person, and installation photographs must be supplied for warranty registration to be valid.