The BT191M MotoBatt is no ordinary replacement battery. It comes with an industry leading 2 year replacement warranty and uses more lead per cell than most leading battery manufacturers. The BT191M replaces the YB7-A, YB7L-B, YB9L-B, YB9L-A2 battery (and others, see chart) and is designed to meet or exceed OEM specifications. This premium sealed AGM battery will arrive fully charged and need only be connected to your machine.