18650 16650 Li-ion Battery Protection Board PCM - 1S-4S Configurations with Holder Case (1S1P/2S1P/2S2P/3S1P/4S1P)

Professional Li-ion Battery Protection Circuit Module (PCM)

Protect your 16650/18650 lithium-ion battery packs with our advanced PCM protection board featuring integrated holder case. Available in multiple series and parallel configurations (1S-4S) to meet your exact voltage and capacity requirements for safe, reliable battery management.

Key Features

• Advanced PCM Protection: Integrated protection circuit module safeguards against overcharge, over-discharge, overcurrent, and short circuits
• Multiple Configurations: Available in 1S1P, 2S1P, 2S2P, 3S1P, and 4S1P arrangements for flexible voltage options (3.6V to 14.4V)
• Universal Compatibility: Designed for both 16650 and 18650 lithium-ion battery cells
• Integrated Holder Design: Built-in battery holder with spring-loaded contacts ensures reliable electrical connection
• High-Quality Components: Premium protection IC with accurate voltage detection and fast response time
• Durable Construction: Flame-retardant ABS plastic housing resists impact and heat
• Pre-wired Leads: Tinned copper wire leads for easy integration into your battery pack
• Compact Form Factor: Space-efficient design ideal for tight installations

Protection Features

• Overcharge Protection: Automatically disconnects when cell voltage exceeds safe limits
• Over-discharge Protection: Prevents deep discharge that can damage lithium cells
• Overcurrent Protection: Limits current flow to prevent thermal runaway
• Short Circuit Protection: Instant cutoff in case of short circuit conditions
• Cell Balancing: Ensures even charging across series-connected cells

Configuration Options

• 1S1P: 3.6V nominal (1 cell) - Single cell protection for low-voltage applications
• 2S1P: 7.2V nominal (2 cells in series) - Ideal for portable electronics and power tools
• 2S2P: 7.2V nominal (2S × 2P) - Double capacity at 7.2V for extended runtime
• 3S1P: 10.8V nominal (3 cells in series) - Common for cordless power tools
• 4S1P: 14.4V nominal (4 cells in series) - High voltage applications and e-bikes

Technical Specifications

• Compatible Cell Sizes: 16650, 18650 lithium-ion
• Voltage Range: 3.6V - 14.4V (configuration dependent)
• Protection IC: High-precision voltage detection
• Overcharge Protection Voltage: 4.25V ± 0.05V per cell
• Over-discharge Protection Voltage: 2.5V ± 0.1V per cell
• Overcurrent Protection: Configuration dependent
• Housing Material: Flame-retardant ABS plastic (UL94 V-0)
• Wire Specification: 20AWG silicone wire (standard)
• Operating Temperature: -20°C to 60°C (-4°F to 140°F)

Applications

Perfect for DIY battery pack assembly, portable power banks, electric bicycles, RC vehicles, LED lighting systems, solar energy storage, backup power supplies, robotics projects, power tools, and custom electronics requiring reliable lithium-ion battery protection.

Package Contents

• 1x PCM Protection Board with Integrated Battery Holder
• Pre-wired connection leads

Note: Batteries NOT included. Please select the configuration that matches your voltage and capacity requirements. Always use matched cells of the same capacity and chemistry.

Safety Information

• Charging: Always use a compatible lithium-ion charger with proper voltage settings for your configuration. Never exceed recommended charging current
• Storage: Store in a cool, dry location away from flammable materials and direct sunlight
• Operation: Do not exceed the rated current capacity of the PCM protection circuit. Ensure proper heat dissipation
• Temperature: Avoid exposure to extreme temperatures. Do not operate outside specified temperature range
• Handling: Insert batteries with correct polarity as clearly marked. Never force cells into holder. Use only matched cells
• Inspection: Regularly check for physical damage, loose connections, corrosion, or signs of overheating. Discontinue use immediately if damage is found

Shipping & Transportation Notice

• Hazardous Goods: PCM protection boards without batteries are NOT classified as dangerous goods
• Air Transport: Safe for international air freight when shipped without batteries installed
• Packaging: Carefully packaged with anti-static protection to prevent ESD damage
• Delivery Time: Ships within 1-2 business days, delivery times vary by destination
• Documentation: Compliance certificates and technical specifications available upon request