Electronic module 5S5 String Battery Charging Protection Board BMS Module 18v 21v 20A Lithium Ion Lithium Battery Pack Protection Circuit

The Protection Board Is Used for 5 Series Lithium Ion Batteries, Mainly for Electric Tools. It Uses IC Dedicated to 5s Lithium Battery as a Processor to Detect the Real-Time Voltage, Charging and Discharging Current and Ambient Temperature of Each Battery. Stable Charging and Discharging Protection Functions, Such as Overcharge Protection, Overdischarge Protection and Short Circuit Protection. Low Power Consumption, Work Current about 25ua, Static Current about 6UA. Choosing the Appropriate Protection Board and Using It Properly Is Very Important to Prolong the Service Life of the Battery.

Packages Include:

Power Module Is a Kind of Electronic Components, Please Do Not Shoot without Electronic Expertise, Otherwise It Will Be Easily Damaged!

Read the Wiring Diagram Carefully before Wiring. the Sequence of Each Battery Must Be Correct. If You Are Not Sure, Please Do Not Wire!

This Protection Board Is Used to Protect the Battery from Overcharging and Overdischarging. It Cannot Replace the Charger. It Still Needs a Special Charger for Lithium Battery When Charging!

Note 1: Wiring 0V(B-),3.7V(B1),7.4V(B2),11.1V(B3)14.8V (B4)18V(B +), Do Not Deliberately Short Circuit!

Note 2: After Connecting the Cable, You Need to Charge It First before the Output Can Be Generated.

Note 3: When Connecting 5 Groups of Batteries in Series, Please Ensure That the Voltage of Each Group of Batteries Is the Same. If Not, Please Fill Each Group of Batteries Separately and Use Them in Series. During the Discharge Test, the Group of Batteries Whose Voltage Drops Quickly Is Poor.