BMS 2S 4A Protection Board

2S 4A Lithium Battery BMS Protection Board

18650 Lithium Lion Battery 2S 7.4V 4A BMS Protection Board

     Suitable for 2 pieces of 18650 batteries. It does not charge the battery. It is for battery protection. For the battery charging process you need a charging board or device that can perform current limiting.

Features:

• Protection circuit for 2 series lithium batteries.
• Overcharge protection.
• Over-discharge protection.
• Short circuit protection.
• Overcurrent protection.
• Recovery from protection: Automatic
• Overcharge voltage: 4.25 – 4.35V ±0.05V
• Over-discharge voltage: 2.3 – 3.0V ±0.05V
• Charging voltage: DC 9V  ( Maximum 12V )
• Maximum continuous discharge current: 4A
• Operating temperature:  -40C  / 80C
• Dimensions:  16,5mm x 35mm
• Weight:  1,5gr

Board Connections:  Please review image number 2.

• B+ Battery + connection
• B-  Battery – connection
• BM Connection between Battery 1 and Battery 2
• P+ Common point for charge and load connection. Positive terminal is connected.
• P-  Common point for charge and load connection. Negative terminal is connected.

Package Contents:

• 1 Piece 2S 4A Lithium Battery BMS Protection Board