2S 7.4V 13A 18650 Lithium Battery Protection BMS Module

Features:

• Battery Configuration : Suitable for a 2S (2-series) configuration with a nominal voltage of 7.4V (3.7V per cell).
• Overcharge Protection: Protects against overcharging.
• Over-Discharge Protection: Prevents over-discharging.
• Short Circuit Protection: Provides protection against short circuits. Requires addressing the short circuit cause before charging can resume.
• Effective Life: Expected effective life of more than 50,000 hours.

Specifications:

• Overcharge Voltage Range: 4.25-4.35V ± 0.05V 
• Over-Discharge Voltage Range: 2.5-3.0V ± 0.05V 
• Maximum Continuous Discharge Current: 13A
• Maximum Instantaneous Current: up to 20A and limits it to that value.
• Static Current: less than 10uA.
• Internal Resistance: less than 300mΩ.
• Charging Voltage: between 8.4V – 9V.
• Operating Temperature Range: -40°C to +50°C.
• Storage Temperature Range: -40°C to +80°C.
• Dimensions: 46mm x 20mm x 3.6mm.

Welding Point Description:

• B+: connects to the battery positive.
• B-: connects to the battery negative.
• BM: connects the battery 1 to the connection point before the battery 2.
• P+: connects to the charge/discharge side of the positive (charge side/discharge side shared).
• P-: connects to the charge/discharge terminal negative (charge/discharge side common).

Note: 

This BMS cannot be used as lithium ion phosphate battery protection board. Please ensure that you use this battery protection board according to the specified voltage ranges and safety guidelines to prevent damage to your batteries and ensure safe operation.