
3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells
3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells is a reliable Battery Management System designed to protect 3S lithium-ion battery packs from overcharge, over-discharge, overcurrent, and short circuit conditions. Designed for 18650 NMC cells, it ensures safe battery operation, improves battery lifespan, and delivers reliable performance for DIY battery packs, portable devices, and energy storage applications.
About The Sensor
The NTC (Negative Temperature Coefficient) sensor in a Battery Management System (BMS) continuously monitors the temperature of the battery pack to ensure safe operation. As the battery temperature increases, the resistance of the NTC sensor decreases, allowing the BMS to detect overheating. If the temperature exceeds the preset safety limit, the BMS automatically disconnects charging or discharging to protect the battery from damage, overheating, and potential thermal runaway. Once the temperature returns to the safe operating range, the BMS restores normal operation, ensuring enhanced battery safety, reliability, and longer service life.
Features:
- Designed for 3S Lithium-ion Battery Packs
- Compatible with 3.7V/3.6V 18650 NMC Cells
- 20A Maximum Working Current
- Built-In Overcharge Protection
- Built-In Over-Discharge Protection
- Overcurrent Protection
- Short Circuit Protection
- NTC (Negative Temperature Coefficient) sensor
- Compact PCB Design
- Low Power Consumption
- Reliable Battery Pack Protection
Specifications:
| Parameter | Value |
|---|---|
| Product Type | Battery Management System (BMS) |
| Battery Type | Lithium-ion (NMC) |
| Battery Configuration | 3S |
| Compatible Cell Voltage | 3.6V / 3.7V |
| Compatible Cell Type | 18650 |
| Maximum Working Current | 20A |
| Overcharge Protection Voltage | 4.2V per Cell |
| Protection Features | Overcharge, Over-Discharge, Overcurrent, Short Circuit |
Also Check These Out:-
4S 6Amps LFP Battery Protection BMS Module for 3.2V LFP cells
1S 6A LFP 32650 Lithium Battery Protection Board 3.2V BMS
3S 10A Lithium Battery Protection BMS Module for 11.1V NMC cells
3S 10A Lithium Battery Protection BMS Module for 3.7V NMC cells without Nickel Strip
Package Includes:
1 x 3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells
Original: $1.83
-65%$1.83
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3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells
3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells is a reliable Battery Management System designed to protect 3S lithium-ion battery packs from overcharge, over-discharge, overcurrent, and short circuit conditions. Designed for 18650 NMC cells, it ensures safe battery operation, improves battery lifespan, and delivers reliable performance for DIY battery packs, portable devices, and energy storage applications.
About The Sensor
The NTC (Negative Temperature Coefficient) sensor in a Battery Management System (BMS) continuously monitors the temperature of the battery pack to ensure safe operation. As the battery temperature increases, the resistance of the NTC sensor decreases, allowing the BMS to detect overheating. If the temperature exceeds the preset safety limit, the BMS automatically disconnects charging or discharging to protect the battery from damage, overheating, and potential thermal runaway. Once the temperature returns to the safe operating range, the BMS restores normal operation, ensuring enhanced battery safety, reliability, and longer service life.
Features:
- Designed for 3S Lithium-ion Battery Packs
- Compatible with 3.7V/3.6V 18650 NMC Cells
- 20A Maximum Working Current
- Built-In Overcharge Protection
- Built-In Over-Discharge Protection
- Overcurrent Protection
- Short Circuit Protection
- NTC (Negative Temperature Coefficient) sensor
- Compact PCB Design
- Low Power Consumption
- Reliable Battery Pack Protection
Specifications:
| Parameter | Value |
|---|---|
| Product Type | Battery Management System (BMS) |
| Battery Type | Lithium-ion (NMC) |
| Battery Configuration | 3S |
| Compatible Cell Voltage | 3.6V / 3.7V |
| Compatible Cell Type | 18650 |
| Maximum Working Current | 20A |
| Overcharge Protection Voltage | 4.2V per Cell |
| Protection Features | Overcharge, Over-Discharge, Overcurrent, Short Circuit |
Also Check These Out:-
4S 6Amps LFP Battery Protection BMS Module for 3.2V LFP cells
1S 6A LFP 32650 Lithium Battery Protection Board 3.2V BMS
3S 10A Lithium Battery Protection BMS Module for 11.1V NMC cells
3S 10A Lithium Battery Protection BMS Module for 3.7V NMC cells without Nickel Strip
Package Includes:
1 x 3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells is a reliable Battery Management System designed to protect 3S lithium-ion battery packs from overcharge, over-discharge, overcurrent, and short circuit conditions. Designed for 18650 NMC cells, it ensures safe battery operation, improves battery lifespan, and delivers reliable performance for DIY battery packs, portable devices, and energy storage applications.
About The Sensor
The NTC (Negative Temperature Coefficient) sensor in a Battery Management System (BMS) continuously monitors the temperature of the battery pack to ensure safe operation. As the battery temperature increases, the resistance of the NTC sensor decreases, allowing the BMS to detect overheating. If the temperature exceeds the preset safety limit, the BMS automatically disconnects charging or discharging to protect the battery from damage, overheating, and potential thermal runaway. Once the temperature returns to the safe operating range, the BMS restores normal operation, ensuring enhanced battery safety, reliability, and longer service life.
Features:
- Designed for 3S Lithium-ion Battery Packs
- Compatible with 3.7V/3.6V 18650 NMC Cells
- 20A Maximum Working Current
- Built-In Overcharge Protection
- Built-In Over-Discharge Protection
- Overcurrent Protection
- Short Circuit Protection
- NTC (Negative Temperature Coefficient) sensor
- Compact PCB Design
- Low Power Consumption
- Reliable Battery Pack Protection
Specifications:
| Parameter | Value |
|---|---|
| Product Type | Battery Management System (BMS) |
| Battery Type | Lithium-ion (NMC) |
| Battery Configuration | 3S |
| Compatible Cell Voltage | 3.6V / 3.7V |
| Compatible Cell Type | 18650 |
| Maximum Working Current | 20A |
| Overcharge Protection Voltage | 4.2V per Cell |
| Protection Features | Overcharge, Over-Discharge, Overcurrent, Short Circuit |
Also Check These Out:-
4S 6Amps LFP Battery Protection BMS Module for 3.2V LFP cells
1S 6A LFP 32650 Lithium Battery Protection Board 3.2V BMS
3S 10A Lithium Battery Protection BMS Module for 11.1V NMC cells
3S 10A Lithium Battery Protection BMS Module for 3.7V NMC cells without Nickel Strip
Package Includes:
1 x 3S 20A Li-ion Battery Protection BMS Module for 3.7V NMC Cells























