ADOPTS WITH LITHIUM CELL MANAGEMENT OFFERS FAST AND SAFE CHARGING--Adopt intelligent lithium cell management IC for fast and safe chargingBALANCING CHARGING EXTENDS BATTERY LIFE--With balance charging to balance the characteristic of each battery in battery pack and prolong battery lifeMULTI-OVER PROTECTION ENSURES SAFETY USE--Provide a variety of protection functions including overcharge, over-discharge, short circuit, and temperature protectionEQUIPPED WITH ALUMINUM FIN ENSURES QUICK HEAT DISSIPATION--Equipped with thickened aluminum fin to achieve quick heat dissipationMANY TIMES TESTING ENSURES HIGH QUALITY--This product has gone through load and aging test for quality assuranceDischarge current: 15ACharging current (same port): 15AMain circuit on-resistance: less than or equal to 20m ohmCharging voltage: 42vOverload protection:Detection voltage: 4.25 +/- 0.025vDetection delay: 1000msRelease voltage: 4.15 +/- 0.05vAbout discharge protection:Detection voltage: 2.8 +/- 0.1vDetection delay: 1000msRelease voltage: 3.0 +/- 0.1vOvercurrent Protection:Current protection: 50 3a 3aself-consumption:Working power consumption: 40uaOperating temperature range: -30/+80colour: silverMaterial: ABS+metalSize: 60x33x10mmPackage Contents:1 x bms battery charging protection boardOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.