18 V 4200 mAh NiMH battery packIdeal for DC Power Supply for scooter, robot, E-Bikes and any 18V DC device.Made with 15 4/3 AF (18650)size 4200mAh high capacity NiMH Batteries.Extra battery pack protection with high temperature and high strength PVC wrap Technical Specifications Voltage18VBattery15 NIMH 4/3 AF 4200mAh cellsConnectorno connector, 18AWG 6" bare leads Dimensions95mm x 57mm x 66mm Weight870g.WARNING:Don't subject battery to too high current drain (>10A for continuous use) Internal over-discharging protection can shut down and power. If you can not accept power off in your applications, please don't use this pack Don't connect mutliple these battery packs to increasepack votlage or capacity Don'tmake changes to battey packs and chargers. Any alteration will VOID the warranty from us.