FMA 1S 3.6V 3.7V Li-ion Battery Protection Board BMS PCM 2A (10pcs)

FMA 1S 3.6V/3.7V Li-ion Battery Protection Circuit Board (BMS/PCM) - 10 Pieces Pack

Professional-grade Battery Management System (BMS) protection circuit boards designed for single-cell (1S) lithium-ion and lithium-polymer batteries. This value pack includes 10 protection boards, providing comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions for various small-scale applications.

Key Features

• 1S Configuration: Designed for single-cell lithium battery packs (3.6V nominal, 3.7V typical)
• Value Pack: 10 pieces per order for multiple projects or bulk applications
• Multi-Protection: Overcharge, over-discharge, overcurrent, and short circuit protection
• 2A Continuous Current: Supports up to 2A continuous discharge current
• Ultra-Compact Design: Minimal footprint ideal for very small battery applications
• High Reliability: Quality components ensure long-term stable operation
• Cost-Effective: Bulk pack offers excellent value for multiple projects

Package Contents

• 10× FMA 1S BMS Protection Circuit Boards

Technical Specifications

Applications

• Single-cell (18650, 18500, 14500, etc.) lithium battery protection
• Portable power banks and battery packs
• Small handheld electronic devices
• LED flashlights and lighting systems
• Portable speakers and audio devices
• Wearable devices and smart accessories
• IoT devices and sensors
• Camera accessories and photography equipment
• Medical equipment battery packs
• DIY electronics projects
• Custom battery pack projects
• Battery rebuilds and upgrades

Protection Functions

Overcharge Protection: Automatically disconnects charging when the cell reaches the overcharge protection voltage (4.25V ± 0.05V), preventing battery damage from excessive voltage.

Over-discharge Protection: Cuts off discharge when cell voltage drops to the protection threshold (2.5V ± 0.1V), preventing deep discharge that can permanently damage lithium cells.

Overcurrent Protection: Monitors discharge current and disconnects the load if current exceeds safe limits (2A continuous), protecting both the battery and connected devices.

Short Circuit Protection: Instantly disconnects the battery in the event of a short circuit, preventing fire hazards and equipment damage.

Installation & Wiring

Before Installation:

• Verify that the battery cell voltage is within safe range (2.5V-4.2V)
• Prepare necessary tools: soldering iron, wire strippers, multimeter, heat-shrink tubing
• Work in a clean, well-ventilated area with proper ESD protection
• Wear safety glasses and insulated gloves

Wiring Guidelines:

• Connect the positive terminal of the battery to B+ on the protection board
• Connect the negative terminal of the battery to B- on the protection board
• Output terminals (P+ and P-) connect to your device or charging circuit
• Use appropriate wire gauge for connections (minimum 22AWG for 2A)
• Double-check polarity before making final connections
• Ensure all solder joints are clean and secure with good electrical contact
• Insulate all connections with heat-shrink tubing to prevent shorts
• Test voltage with a multimeter before connecting to devices

Required Skills:

• Understanding of lithium battery chemistry and safety
• Proficiency in soldering and electrical connections
• Ability to read wiring diagrams and follow technical specifications
• Knowledge of proper battery handling and safety protocols
• Experience with multimeter usage and voltage testing

Who Should NOT Attempt Installation:

• Individuals without electrical or electronics experience
• Those unfamiliar with lithium battery safety requirements
• Anyone without proper tools or workspace
• Minors without qualified adult supervision
• If unsure about any aspect of installation, consult a professional technician

Important Notes

Bulk Pack Advantage: This 10-piece pack is ideal for hobbyists, DIY enthusiasts, repair shops, or anyone working on multiple battery projects. The bulk quantity offers excellent value and ensures you have spare boards for future projects.

Current Rating: Each BMS board is rated for 2A continuous discharge current. Ensure your application does not exceed this current limit. For higher current applications, consider our multi-cell (2S, 3S, 4S, etc.) BMS boards with higher current ratings.

3.7V Standard Voltage: This 1S BMS is ideal for 3.7V single-cell battery applications, which is the most common voltage for 18650, 18500, 14500, and similar lithium-ion cells used in flashlights, power banks, and portable devices.

Connector Customization: We ship the standard configuration as shown in the main product images. If you require specific connectors or custom wire arrangements, please refer to the product gallery images and contact us with your requirements before ordering.

Compatibility: This BMS is designed for single-cell lithium-ion or lithium-polymer batteries with nominal voltage of 3.6V/3.7V. Ensure your battery matches before purchase. Using this BMS with incorrect battery types can result in improper protection and potential safety hazards.

Testing: After installation, perform thorough testing including voltage checks, charge/discharge cycles, and protection function verification before putting the battery into regular use.

Why Choose FMA BMS Products?

FMA specializes in high-quality battery management solutions for lithium-ion and lithium-polymer battery systems. Our BMS boards are manufactured using premium components and undergo rigorous quality control testing to ensure reliable protection and long service life. Each board is inspected and tested before shipment to guarantee it meets our strict quality standards.

Custom BMS Solutions

Need a different cell configuration, current rating, or custom features? We offer custom BMS design and manufacturing services. Contact us with your specifications including cell count, voltage requirements, current ratings, and any special features you need, and we'll create a tailored solution for your application.

Safety Information

Charging: Use only chargers designed for single-cell lithium batteries with proper voltage (4.2V) and current specifications. Never exceed the maximum charging voltage.

Storage: Store in a cool, dry place away from direct sunlight, heat sources, and flammable materials. Keep out of reach of children.

Operation: Do not bypass or disable protection functions. Do not expose to water, moisture, or conductive materials that could cause short circuits.

Temperature: Operate within recommended temperature range. Avoid extreme temperatures during charging and discharging.

Disposal: Dispose of according to local regulations for electronic waste. Do not incinerate or dispose of in regular trash.

Inspection: Regularly inspect for signs of damage, overheating, or component failure. Discontinue use immediately if any abnormalities are detected.

Shipping & Transportation Notice

Hazardous Material: This product is designed for use with lithium batteries and may be subject to shipping restrictions.

Air Transport Restrictions: Due to international air transport regulations, shipments may be subject to additional restrictions and longer transit times.

Packaging Compliance: All shipments comply with applicable packaging requirements for electronic components.

Delivery Time: Electronic component parcels may experience extended delivery times due to customs inspections and carrier handling procedures.

Documentation: Proper documentation accompanies all shipments to ensure compliance with international shipping regulations.