[DESCRIPTION] Ridstar Q20 Lite Electric Bike Battery Features 48V 15Ah Q20 Lite ebike battery built with 4 bar power level lights to indicate the battery capacity status. Anti-Thief safe lock to prevent the battery from being stolen. Power On/Off Switch, energy saving, safe and reduces power consumption when not in use. Smart BMS system, prevents overcharging, over-discharging, over-current and short circuit. Best for riders want to gain more speed and range on Q20 Lite electric mountain bike. Just swap plugs to connect either battery or electric bike.  [/DESCRIPTION][SPECIFICATIONS] Specifications Battery:48V/15 Ah Charging time:4-6 hours Pure Electric Range:30 Miles Maximum Range with Pedal-assist:50 Miles [/SPECIFICATIONS]