14.4V, 3400mAh, Li-ion Battery fits Fujikura, Fsm-21s, Fsm-22s, 48.96WhBattery Fits Models: Fsm 21s, Fsm 22s, Fsm 27s, Fsm 28s Battery Part Numbers: Btr 11 The replacement battery listed here is developed using the highest quality components. Canadian Batteries have supplied the replacement batteries from Cameron Sino for nearly a decade. We have had zero instances of a product being damaged while using one of our batteries in that time. There can be occasions when the battery model number or the model of your device is