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 -- 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 TESTING ENSURES HIGH QUALITY--This product has gone through load and aging test for quality assuranceDischarge current:80ACharging voltage: 54.6vOverload protectionDetection voltage: 4.250.025vDetection delay: 1000ms 500msRelease voltage: 4.150.05vAbout discharge protectionDetection voltage: 2.80.1vDetection delay: 1000ms 500msRelease voltage: 3.00.1vBalance voltageDetection voltage: 4.130.025vCurrent balance: 42mAOvercurrent ProtectionDetection voltage: 50MVDetection delay: 1000ms 500msCurrent protection: 15030A 20040A 25050A-consumptionWorking consumption: 35uaOperating temperature range: -30/+80CelsiusColour:blueMaterial:ABS+MetalSize: 130 x 62 x 10mmPackage Contents:1 x bms battery charging protection boardOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.