The 4S 40A Balanced BMS is a high-current battery management system designed for 4-series (4S) Lithium-ion or Lithium-polymer battery packs. It acts as the “brain” of your battery, monitoring each cell individually. This enhanced version includes a balancing circuit, which ensures that all cells reach the same voltage during charging, significantly extending the overall lifespan of your 18650 or 21700 cells.
Key Features
Active Balancing: Integrated resistors balance the voltage between cells during the final stages of charging.
40A High Current: Capable of handling up to 40A continuous discharge, making it suitable for power tools and motor drivers.
Triple Protection: Safeguards against Overcharge (>4.25V), Over-discharge (<2.5V), and Short-circuiting.
Heat Dissipation: Features a large surface area and high-quality MOSFETs to manage heat during high-load operations.
Versatile Application: Perfect for creating 14.8V (nominal) or 16.8V (max) battery packs.
Technical Specifications
Feature
Specification
Compatible Battery
3.7V Li-ion (e.g., 18650, 21700, 26650)
Configuration
4 Series (4S)
Continuous Discharge
40A (Max)
Continuous Charge
20A (Max)
Charging Voltage
16.8V to 17.2V
Overcharge Protection
4.25V \pm 0.05V
Over-discharge Protection
2.5V \pm 0.05V
Balancing Current
100mA
Board Size
45mm x 60mm
Weight
2000 g
Dimensions
15 × 10 × 5 cm
Reviews
There are no reviews yet.
Be the first to review “4S 40A BMS Li-ion Battery Protection Board with Balance – 14.8V 16.8V 18650 Charger Module”Cancel Reply
Reviews
There are no reviews yet.