3S 18650 Lithium Battery Charger BMS Protection Board 40A Balanced
BMS / Battery Protection Boards
৳260.00
Description of 3S 18650 Lithium Battery Charger BMS Protection Charging Board 40A Balanced Version
3S 18650 Lithium Battery Charger BMS Protection Charging Board 40A Balanced Version
The 3 Series 40A 18650 Lithium Battery Protection Board is a high-performance Battery Management System (BMS) designed for 3-cell (3S) lithium battery packs. Operating at a nominal voltage of 11.1V – 12.6V, this board offers auto-recovery functionality, a balanced charging feature, and is equipped with 10 integrated low load resistance MOSFETs for efficient power handling.
This protection board is ideal for applications such as electric drills, sprayers, LED lights, and low-power inverters. It supports a continuous discharge current of 40A and a charging current of up to 20A. The balancing feature ensures equal charge distribution across all cells, with a balanced current of 100mA to extend battery life and improve safety
Key Feature
3-Cell (3S) Lithium Battery Support – Compatible with 18650, 26650, and polymer lithium batteries
Auto Recovery Function – Automatically restores protection functions after fault removal
Integrated Balance Charging – Maintains charge uniformity between cells (100mA balance current)
10 Low Load Resistance MOSFETs – Ensures high efficiency and reliable performance
High Discharge & Charge Capacity – 40A continuous discharge and 20A charge current
Compact & Lightweight Design – Ideal for embedded and portable battery applications
Wide Operating Temperature – Stable performance between -40°C to +85°C
Technical Specifications:
Parameter | Specification |
|---|---|
Battery Support | 3 Cell (3S) Lithium-ion/Lithium Polymer |
Nominal Battery Voltage | 3.6V / 3.7V per cell |
Charging Voltage Range | 12.6V – 13.6V |
Overcharge Detection Voltage | 4.25V ± 0.025V |
Over-discharge Detection | 2.50V ± 0.08V |
Continuous Discharge Current | 40A |
Continuous Charge Current | 20A |
Balanced Charging Current | 100mA |
Start Current Recommendation | Below 80A |
Max Load Power | ≤ 135W (with balance, for drills) |
Operating Temperature | -40°C to +85°C |
Dimensions (L×W×H) | 60mm × 41mm × 3.5mm |
Weight | 9g |
Applications
12V-rated battery packs
Power banks and portable chargers
Electric drills and sprayers
LED lighting systems
Consumer electronic devices
DIY battery-powered projects
Packaging Details
1x 3S 18650 Lithium Battery Charger BMS Protection Charging Board 40A Balanced Version
