1S 3.7V 3A BMS Protection Board for 18650 Li-ion Battery - Nickel Strip Included
Professional-grade battery protection circuit module for your DIY power bank, flashlight, or electronic projects. Each BMS board comes with pre-attached nickel strips for easy soldering to your 18650 lithium battery cells.
Quantity Options:
- Single Board (1pc)
- Standard Pack (5pcs)
- Bulk Pack (10pcs)
Key Features:
- Complete battery protection: prevents overcharging, over-discharging, short circuits, and overcurrent conditions
- High-precision voltage detection circuit with imported IC components
- Pre-attached nickel strips for easy battery mounting
- Ultra-compact size (18×3.6mm) fits inside most battery compartments
- Low power consumption design for extended battery life
- Supports continuous 2A current with 3A peak performance
Technical Specifications:
- Compatible Battery: Single 18650/14500/16340 Li-ion (3.7V nominal)
- Overcharge Protection: 4.25V±0.05V (cuts off charging)
- Overcharge Release: 4.23V±0.05V (resumes normal operation)
- Over-discharge Protection: 2.54V±0.1V (prevents battery damage)
- Overcurrent Protection: 3A maximum (safety cutoff)
- Operating Temperature: -40°C to +85°C
Connection Guide:
- B+ terminal: Connect to battery positive
- B- terminal: Connect to battery negative
- P+ terminal: Output/input positive connection
- P- terminal: Output/input negative connection
Perfect For:
- DIY power banks and portable chargers
- LED flashlight and lighting projects
- Custom battery packs for electronics
- Replacing protection circuits in damaged battery packs
- Arduino and Raspberry Pi battery-powered projects
Note: These protection boards are essential for safely using lithium-ion batteries in DIY projects. Never use unprotected lithium batteries without proper protection circuits.
