... : 77mmLong: 86mmBattery Quality: 1. Cells: A grade cells to make sure batteries in high and full capacity2.Protection ... cycly, environment friendly Advantages: 1, High energy density2, High working voltage for single battery cells3, Pollution-free, environment friendly4, ... lamp8. Small medical equipment and portable equipment 36V Li-ion battery pack used for electric bicycle with Al alloy case, ...