DEHAWK Replacement Battery for NCM Paris, London, Rome, Essen 36VModel B1U Nominal Voltage 36V Max. Charge Voltage 42V Cut off Voltage 31V Capacity 14 Ah(504 Wh) 15 Ah(540 Wh) 18 Ah(648 Wh) 19 Ah(684 Wh) Max. Rated Current 18A Max. Charging Current 3A Cell Format NMC 18650 USB Port 50. 3 V, 10. 2 A Cycle Life up to 1000 charge discharge cycles, >60% remaining capacity after 500 cycles Storage 5~35C, relative humidity <75% Suitable for the following bike type models NCM London, Paris , Essen ***THIS BATTERY IS NOT