PURCHASED THIS BATTERY NEW WITH BIKE FOR FATHER- HAD ABOUT 3-4 CHARGES ON IT AND WAS USED LESS 5 TIMES. 

WE REMOVED THE BATTERY FOR WINTER LY FROM SANIBEL AND THE HURRICANE DESTOYED THE BIKE AND HENCE WE ARE LEFT WITH THE BATERY AND THE CHARGER

I AM NOT OVERLY FAMILIAR WITH IT- EXCEPT THAT WEPURCHASED ALL TOGETHER AND TO SAY THE LEAST IT WAS NOT CHEAP=- AND WE BOUGHT THE CHARGER SEPARATELY

BATTERY LABEL ALSO STATES 48V12.8AH

BATTERY IS ABOUT 16 INCHES LONG