The 1S 18650 Li-ion Battery BMS Charger Protection Board is specifically designed for single-cell 3.7V lithium-ion batteries. It provides reliable battery management and protection, ensuring safe charging and discharging while extending battery life.
Featuring a compact and lightweight design, this protection board is ideal for use in custom battery packs, power banks, portable electronic devices, DIY electronics projects, rechargeable lighting systems, and other battery-powered applications. The integrated protection circuitry helps prevent common battery-related issues, enhancing both safety and performance.
Protection Features
Short Circuit Protection
Overcharge Protection
Over-discharge Protection
Overcurrent Protection
Pin Configuration
Pin
Description
P+
Positive terminal for charging and load connection
P-
Negative terminal for charging and load connection
B+
Positive terminal of the battery
B-
Negative terminal of the battery
Key Features
High-precision voltage detection circuit for accurate battery monitoring
Supports safe charging through a high-voltage charging terminal
Integrated three-level current protection system:
Overcurrent Protection Level 1
Overcurrent Protection Level 2
Load Short-Circuit Protection
MOSFET-based charge and discharge control for efficient battery management
Compact design for easy integration into battery-powered devices
Suitable for single-cell 18650 and other 3.7V Li-ion batteries
Improves battery safety, reliability, and service life
Applications
Power banks
Portable electronic devices
Bluetooth speakers
Rechargeable LED lights
DIY battery packs
Robotics projects
IoT and embedded systems
Small backup power solutions
Benefits
By continuously monitoring battery voltage and current, this BMS protection board safeguards lithium-ion cells from unsafe operating conditions. Its intelligent protection mechanisms help prevent battery damage, improve overall system reliability, and extend the lifespan of rechargeable battery packs.
This 1S 18650 Li-ion Battery Protection Board is an essential component for anyone building or maintaining single-cell lithium-ion battery-powered devices.
Charging voltage
4.2V
Over Charge Protection
4.25V ±05V
Over Discharge Protection
2.1V ±05V
Max Working current
6A
Max peak current
7V
Life cycle
> 30000 hours
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