high power samsung lithium ion super 73 battery 72 volt 20ah with bms and charger

the rechargeable battery color is black.dimensions is 381(l)mmx167mm(h)x183mm(w).the style is down tube, which is mounted on the bicycle frame the battery adopts high-quality a-grade samsung 18650 or 21700 brand cells, with larger capacity and better service life. the battery is equipped with 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 for 8-15 working days.syi