JUNTEX Lithium Battery Pack Battery Charging Protection Board Transmitter Circuit Board

5S 18/21V 20A Li-Ion Lithium Battery Pack Charging Protection Board DIY Replacement PCB Board for Makita Features: 100% brand new and high quality. The protection board is for 5 series Li-ion batteries mainly used for electric power tools. It uses special IC for 5S lithium batteries as processor to detect real-time voltage charge and discharge current and ambient temperature of each battery. Stable various protective functions for charging and discharging such as overcharge protection over-discharge protection and short circuit protection. Low power consumption the working current is about 25uA and quiescent current is about 6uA. Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries. Specifications: Charge Voltage:19/21V Single Cell Charge Voltage:3.8/4.25V Continuous Discharge Current:8-20A Overcharge Single Cell Detection Voltage:3.85-4.25V Overcharge Protection Delay:1S Overcharge Single Cell Recovery Voltage:3.75-4.13V Overcharge Protection Release Delay:1mS Over-discharge Single Cell Detection Voltage:2-2.8V Over-discharge Protection Delay:1S Over-discharge Single Cell Recovery Voltage:2.5-3.0V Over-discharge Protection Release Delay:100±20mS Over-current Detection Voltage:0.1-0.4V Over-current Detection Current:30±5A Over-current Detection Delay:1S Short Circuit Protection Support:Yes Short Circuit Detection Delay:250uS Short Circuit Release Delay:1S Short Circuit Detection Voltage:0.8V Recovery State:Auto after Disconnect Load Over Temperature Protection Protection Temperature:70±5° Recovery Temperature:55±5° Working State :25uA (25°) Stand-by State:6uA(25°) Discharge Main Circuit Internal Resistance:30±5mΩ Operating Temperature: -40°-85° RH≤75% Store Temperature: -40°-125° RH≤75% Size Length x Width:45x40mm/1.77*1.57 Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 × Battery Charger Protection Board