... , No pollution, Low self-discharge 5.Light weight lithium polymer battery for electric bicycle Voltage:48VCapacity: 10AH 15AHCertifications: CE,RoHS,UL,BATSO,ect ... Short-circuit protective functionOK 2.11DimensionLength≤ 270mm/unitWidth≤ 80Thickness≤ 145 48V lithium ion battery for e-bicycle