Battery Charging Protection Board 5S BMS 18/21V 20A Li-Ion Lithium Battery Pack Protection Circuit Board Module for Power Tools

5S 18V 21V 20A Battery Charging Protection Board Li-Ion Lithium Battery Pack Protection Circuit Board BMS Module for Power Tools

Description

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:
1.Voltage
Charge Voltage:19/21V  
Single Cell Charge Voltage:3.8/4.25V
2.Current
Continuous Discharge Current:8-20A
3.Overcharge Protection
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
4.Over-discharge Protection
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
5.Over-current Protection
Over-current Detection Voltage:0.1-0.4V
Over-current Detection Current:30±5A
Over-current Detection Delay:1S
Recovery State:Auto
6.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
7.Over Temperature Protection
Protection Temperature:70±5°
Recovery Temperature:55±5°
8.Power Consumption    
Working State:25uA (25°)
Stand-by State:6uA(25°)
9.Internal Resistance
Discharge Main Circuit Internal Resistance:30±5mΩ
10.Temperature
Operating Temperature:-40°-85° RH≤75%
Store Temperature:-40°-125° RH≤75%
11.Size:46*40mm

Package Included

1 Pcs Battery Protection Board