ADOPTS WITH LITHIUM CELL MANAGEMENT OFFERS FAST AND SAFE CHARGING--Adopt intelligent lithium cell management IC for fast and safe charging BALANCING CHARGING EXTENDS BATTERY LIFE--With balance charging to balance the characteristic of each battery in battery pack and prolong battery life MULTI-OVER PROTECTION ENSURES SAFETY USE--Provide a variety of protection functions including overcharge, over-discharge, short circuit, and temperature protection EQUIPPED WITH ALUMINUM FIN ENSURES QUICK HEAT DISSIPATION--Equipped with thickened aluminum fin to achieve quick heat dissipation MANY TIMES TESTING ENSURES HIGH QUALITY--This product has gone through load and aging test for quality assurance Name: 9s lithium battery protection system Use a single battery voltage: 3.65V (can be set) Continuous current: 300A Charging voltage: 58.4V Overcharge Protection: Detection voltage: 4.25V +/- 0.05V Detection delay: 1s Release voltage: 4.15V +/- 0.05V Over discharge protection: Detection voltage: 2.7V +/- 0.1V Detection delay: 1s Release voltage: 3.0V +/- 0.1V Overcurrent Protection: Detection voltage: continuous current x 2.5 times Detection delay: 1s Release condition: disconnect the load Voltage equalization: Detection voltage: more than 4.18V Release voltage: less than 4.18V Current consumption: 30mA +/- 5mA Short circuit protection: Trigger condition: external load short circuit Detection delay: 700us Release condition: disconnect the load Temperature control protection: Charging working temperature: -20℃~55℃ Discharge working temperature: less than or equal to 70℃ Release voltage: recovery within operating temperature Self-consumption: Working power consumption: 80uA Sleep/overdischarge power consumption: 30uA colour: black Material: aluminum Size: 227x132mm Package Contents: 1 x bms battery charging protection board Only the above package content, other products are not included. Note: Light shooting 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.