4 Cell Holder with Terminal Box for Series Parallel Connection 18650 Battery DIY

The 4 cell 18650 battery box high-performance battery integration board is designed for makers, engineers, and DIY enthusiasts who require a professional and solder-less solution for 18650 battery configurations. By combining heavy-duty battery holders with industrial-grade KF8500-8.5 screw terminals, this PCB eliminates the need for messy wiring or direct soldering to the board, allowing for rapid prototyping and secure power delivery.

Key Features

• Solder-Free Terminal Integration: Equipped with KF8500-8.5 terminals, allowing you to secure or release wires using a standard screwdriver. This design ensures high-current stability and simplifies the connection to external loads or chargers.
• Isolated Channel Design: Each of the four battery slots and its corresponding terminals are electronically separate. This modularity allows you to use one, two, three, or all four slots simultaneously without interference.
• Universal Configuration Flexibility: The independent wiring paths allow for total creative control over your battery bank. Easily configure your power source for:
  • Series: 2S, 3S, or 4S (up to 14.8V nominal).
  • Parallel: 2P, 3P, or 4P (for extended capacity/Ah).
  • Hybrid (Series-Parallel): 2S2P or 2P2S configurations.
• BMS Ready: Specifically designed to interface seamlessly with 1S through 4S lithium battery protection boards (BMS).
• Robust Mounting: Features pre-drilled 3mm (0.12in) mounting holes for secure installation into projects, enclosures, or racks.

Technical Specifications

Safety & Best Practices for 4 cell 18650 battery box

Important Usage Notes:

• Uniformity: When connecting in series or parallel, always use batteries of the same brand, capacity, and voltage level to prevent cell imbalance.
• Wiring: Use consistent wire gauges across all connections to ensure uniform resistance and heat dissipation.
• Polarity: Double-check the positive (+) and negative (-) markings on the PCB before tightening terminals to avoid short circuits.

Applications of 4 cell 18650 battery box

• Portable Power Banks & UPS Systems
• Robotics and High-Torque Motor Powering
• Off-grid LED Lighting Solutions
• Field Testing & Electronic Prototyping
• 18650 battery pack builds for EV

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