3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module

Power up your projects with our high-performance 3 Series 40A Lithium Battery Protection Board. Designed for 11.1V 12.6V lithium battery packs, this board ensures the safety and efficiency of your battery system. With features like overcharge, over-discharge, and overcurrent protection, it's ideal for electric drills, sprayers, LED lights, and low-power inverters.

  Key Features:  

• Recovery Function: Auto recovery for added convenience
• Integrated MOS Tubes: 10 low load resistance MOS tubes for durability
• Continuous Discharge Current: 40A (reduce load current if cooling is insufficient)
• Continuous Charge Current: 20A
• Balanced Version: Suitable for starting current below 80A, power 135W below the drill (with balance)

  Specifications:  

• Battery: 3 Cell
• Overcharge Detection Voltage: 4.25 ± 0.025V
• Over-discharge Detection Voltage: 2.50 ± 0.08V
• Overcurrent Protection: 40A
• Working Current: 20A
• Operating Temperature: -40 ~ +85°C
• Length: 60 mm
• Width: 41 mm
• Height: 3.5 mm
• Weight: 9 gm

  Package Includes:  

• 1 x 3 Series 40A 18650 Lithium Battery Protection Board

  Note:  

• Successful drill start requires three 15C-20C power batteries or six 10C-15C power batteries (ordinary 18650 may not start the drill)
• Strictly follow wiring instructions; do not short circuit deliberately
• When using a brush motor load, connect a non-polar capacitor (25V withstand voltage, 10uF-100uF capacity) to prevent reverse spikes from damaging the MOS tube
• For series-connected batteries, ensure each battery's voltage is similar; test for voltage drop to identify poor batteries