Description:
The 4S 18650 40A Lithium Battery Protection BMS Board – Enhanced is engineered to safeguard 4-series lithium-ion battery packs, typically utilising 18650 cells. Operating at a nominal voltage of 14.8V (3.7V per cell) and a maximum charge voltage of 16.8V, this board offers comprehensive protection against overcharging, over-discharging, and short circuits, ensuring the safety and longevity of your battery packs. The enhanced version incorporates additional passive components to bolster protection mechanisms, and features an auto-recovery function that allows the system to resume normal operation after fault conditions are resolved.
Supporting a maximum continuous discharge current of 40A and a continuous charge current of 20A, this BMS board is suitable for high-power applications such as electric drills, sprayers, LED lights, and low-power inverters up to 135W. Its compact design, measuring 45mm x 55mm x 3.4mm and weighing approximately 9.3 grams, facilitates easy integration into various battery configurations. By ensuring balanced charging and discharging cycles, this board extends the overall lifespan and efficiency of your battery packs.
Specifications:
- Battery Configuration: 4 Series (4S) lithium-ion batteries
- Nominal Voltage: 14.8V (3.7V per cell)
- Charging Voltage: 16.8V to 18.1V
- Max Continuous Charge Current: 20A
- Max Continuous Discharge Current: 40A
- Overcharge Detection Voltage: 4.25V ± 0.05V per cell
- Over-discharge Detection Voltage: 2.8V ± 0.05V per cell
- Dimensions: 45mm x 55mm x 3.4mm
- Weight: 9.3 grams
Features:
- Enhanced protection with additional passive components
- Auto-recovery function for seamless operation after fault resolution
- Overcharge, over-discharge, and short circuit protection
- Compact and lightweight design for easy integration
- Suitable for high-power applications up to 135W
Contents:
- 1 x 4S 18650 40A Lithium Battery Protection BMS Board – Enhanced