4S 20A 18650 Lithium Battery Protection Board

This board is a Lithium battery protection board or a battery  management system which is used for 3.7V lithium ion batteries. The  board is square shaped and portable which makes it easy to store and  transport. The board offers over charging and over discharging  protection along with short circuit protection as well as over current  protection. We can use this board to charge the lithium ion batteries as  well provided that they are rechargeable. We can combine 4X18650 electric cell along with this BMS system to make a battery pack  having voltage rating of up to 15V DC. Four 18650 batteries can be connected simultaneously to the HX-4S-BM20 module.

Specifications