4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board

The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module comes with recovery function – AUTO Recovery and Integrated 10 low load resistance MOS tube. It provides a continuous discharge of 40A, 100mA balanced current, for electric drill/sprayer/LED lights/low power inverter. (If the cooling environment is not good, please reduce the load current use).The Scope of Nominal voltage of 3.6V, 3.7V lithium battery (including 18650, 26650, a polymer lithium battery) where Charging voltage can be range between 16.8V to 18.1V The board operates smoothly with Continuous charge current of (upper limit): 20A. The balanced version is suitable for starting current below 80A, power 135W below the drill (with balance).

Specification:

• Battery:4 Cell
• Overcharge detection voltage (V):4.25 ± 0.025
• Over-discharge detection voltage (V):2.50 ± 0.08
• Over current Protection (A):40
• Working current (A):20
• Operating Temperature (°C):-40 ~ +85
• Length (mm):60
• Width (mm):45
• Height (mm):3.5

Features:

• 4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery).
• Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, a polymer lithium battery).
• Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version).
• Charging voltage: 16.8V – 18.1V.
• Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use).
• Continuous charge current (upper limit): 20A.
• Equalization version: suitable for starting current below 80A, power 135W below the drill.