Features:
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¡À20mS
Over-current Detection Voltage:0.1-0.4V
Over-current Detection Current:30¡À5A
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 ProtectionProtection Temperature:70¡À5¡ã

Recovery Temperature:55¡À5¡ã Working State:25uA (25¡ã) Stand-by State:6uA(25¡ã) Discharge Main Circuit Internal Resistance:30¡À5m¦¸ Operating Temperature: -40¡ã-85¡ã RH¡Ü75% Store Temperature: -40¡ã-125¡ã RH¡Ü75% SizeLength x Width:45x40mm/1.77*1.57"

Package Contents:

1 x Battery Charger Protection Board