samsung 18650 cell by battery bike 48v 52v 36v 20ah with 3a charger for 400-1000w bicycle

the hailong battery color is black.dimensions is 368(l)mmx110mm(h)x90mm(w).the style is down tube, which is mounted on the bicycle frame the battery is equipped with usb socket, and 5v2a current can be used for outdoor mobile phone charging. the battery is equipped with a power switch. when the battery is standing for a long time, turning off the battery power will more effectively prevent the battery from consuming power. the battery power indicator can check the remaining battery power at any time duty door-to-door delivery.syi