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.
Choosing the correct protection board and applying it appropriately is vital to the longevity your batteries.

Charge Voltage: 21V
Charging current: 3 A
Discharge current: 40 A
Over charge protection current: 7A+/-2A
Over discharge protection current: 66A+/-5A (Adjustable)
Single Cell Overcharge protection voltage: 4.25V+/-25MV
Single Cell Over discharge protection voltage: 2.7V+/-80MV
size:78x46mm
Material:PCB+Plastic+Metal
colour:Green

Package Contents:
1 * Battery Charger 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.