FMA 1S 3.6V 3.7V Li-ion Battery Protection Board BMS PCM 2A (100pcs Wholesale)

FMA 1S 3.6V/3.7V Li-ion Battery Protection Circuit Board (BMS/PCM) - 100 Pieces Wholesale Pack

Professional-grade Battery Management System (BMS) protection circuit boards designed for single-cell (1S) lithium-ion and lithium-polymer batteries. This wholesale pack includes 100 protection boards, providing comprehensive protection against overcharge, over-discharge, overcurrent, and short circuit conditions. Ideal for manufacturers, repair shops, and large-scale DIY projects.

Key Features

• 1S Configuration: Designed for single-cell lithium battery packs (3.6V nominal, 3.7V typical)
• Wholesale Pack: 100 pieces per order for commercial and 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
• Maximum Value: Wholesale pricing offers exceptional value for bulk purchases
• Commercial Grade: Perfect for manufacturers, repair centers, and resellers

Package Contents

• 100× FMA 1S BMS Protection Circuit Boards

Technical Specifications

Ideal For

• Manufacturers: Battery pack production and assembly lines
• Repair Shops: Electronics repair and battery replacement services
• Resellers: Retail and online sales of battery protection components
• OEM/ODM: Original equipment and design manufacturers
• Educational Institutions: Electronics labs and training programs
• Large-Scale Projects: Commercial installations and bulk deployments

Applications

• Single-cell (18650, 18500, 14500, etc.) lithium battery protection
• Portable power bank manufacturing
• LED flashlight production
• Portable speaker and audio device assembly
• Wearable device manufacturing
• IoT device and sensor production
• Camera accessory manufacturing
• Medical equipment battery pack assembly
• Battery repair and replacement services
• Custom battery pack production
• Electronics manufacturing and assembly

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

Wholesale Pack Advantages

Maximum Value: This 100-piece wholesale pack offers the best per-unit pricing for commercial buyers, manufacturers, and large-scale projects. Significant cost savings compared to smaller quantities.

Consistent Quality: All 100 boards come from the same production batch, ensuring consistent performance and specifications across your entire project or inventory.

Inventory Management: Bulk quantity ensures you have adequate stock for ongoing production, repairs, or sales without frequent reordering.

Business Ready: Perfect for businesses that need reliable, cost-effective components for battery pack assembly, repair services, or resale.

Important Notes

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. For custom connector requirements or special wire arrangements for large orders, please contact us to discuss your specific needs.

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.

Quality Assurance: Each board undergoes quality control testing before shipment. However, we recommend testing a sample from each batch before full-scale deployment in your production or projects.

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. Our wholesale packs offer exceptional value for commercial buyers while maintaining the same high quality standards.

Custom BMS Solutions & Bulk Orders

Need even larger quantities, different cell configurations, current ratings, or custom features? We offer custom BMS design and manufacturing services with flexible MOQ options. Contact us with your specifications including cell count, voltage requirements, current ratings, quantity needs, and any special features, and we'll create a tailored solution for your business.

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.