18650 2S PCB Battery Holder BK-18650-PC4

The BK-18650-PC4 is a durable PCB-mounted battery holder designed to accommodate two 18650 lithium-ion batteries in a 2S (series) configuration, providing a combined voltage output of 7.4V nominal (8.4V fully charged). This compact holder features a robust plastic construction with integrated PCB mounting pins and secure battery contacts, making it ideal for DIY electronics projects, power banks, portable devices, and battery-powered robotics applications.

The holder’s 2S series configuration automatically connects two 18650 cells in series, doubling the voltage while maintaining the same capacity as a single cell. This eliminates the need for external wiring between batteries, reducing assembly time and improving reliability. The spring-loaded positive contacts ensure secure electrical connection while allowing easy battery insertion and removal for charging or replacement.

Perfect for building custom battery packs for Arduino projects, ESP32 devices, portable LED lights, solar energy storage systems, and various IoT applications, this holder provides a professional solution for integrating 18650 batteries into your designs. The PCB mounting design offers stable mechanical support and easy integration into circuit boards, while the side-by-side battery arrangement keeps the overall profile compact and space-efficient.

Specification :

• Model: BK-18650-PC4
• Battery Type: 18650 Lithium-ion cells
• Configuration: 2S (2 cells in series)
• Number of Cells: 2 × 18650 batteries
• Output Voltage: 7.4V nominal (6.0V – 8.4V range)
• Mounting Type: PCB through-hole mount
• Contact Type: Spring-loaded positive terminals
• Material: High-quality flame-retardant plastic (UL94-V0)
• Contact Material: Nickel-plated steel springs and terminals
• Wire Leads: Positive (+) and Negative (-) solder tabs/pins
• Pin Spacing: Standard PCB pin layout
• Current Capacity: Up to 5A continuous (depends on battery)
• Battery Dimensions: Fits standard 18650 cells (18mm × 65mm)
• Holder Dimensions: Approximately 78mm × 40mm × 20mm
• Connection Method: Series (2S) for higher voltage
• Applications: Power banks, portable devices, robotics, solar systems, DIY projects