Features:

• Item:Battery Charger Protection Board Model: BMS-40A-3S Product size: 41*55*3.4mm (enhanced version) Charging voltage: 12.6V - 13.6V Type: Enhanced versionScope of application:
• Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, no size limit).
• Continuous discharge current (upper limit): 40A (If the heat dissipation environment is not good, please reduce the load current)
• Continuous charging current (upper limit): 15A
• Enhanced version version: Suitable for electric drills with a starting current of 120A or less and a power of 260W or less. Balance version: Suitable for electric drills with starting current below 120A and power below 260W, with balanced charging function.   Notes:
• Strictly follow the wiring of the diagram 0V, 4.2V, 8.4V, 12.6V, do not intentionally short circuit.
• For some customers with poor electronic foundation, please explain: Do not mix good battery and poor battery! The closer the capacity/internal resistance of the 3 batteries is, the better! (The effect of 2 good batteries + 1 poor battery) = 3 use of poor battery). Package
• 1 x 3S 40A Battery Charger Module ( Enhanced