BMS 5S (21V - 20A) Lithium Battery Protection Module For Electric Tools and Drill

BMS 5S 18V 21V 20A Li-ion Lithium Battery Charger Protection Board Battery Charging Protection Board BMS Module For Power Tools

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±20mS

Over-current Detection Voltage : 0.1-0.4V

Over-current Detection Current : 30±5A

Over-current Detection Delay : 1S

Recovery State : Auto

Short Circuit Protection: Yes

Short Circuit Detection Delay : 250uS

Short Circuit Release Delay : 1S

Short Circuit Detection Voltage : 0.8V

Recovery State : Auto after Disconnect Load

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*Width : 46*40mm/1.81*1.57"

Package Includes:

• 1 x Protection Board