2 x 18650 Battery holder Case

Dual-Cell Series 7.4V Power Output: Holds two 18650 lithium-ion cells in series configuration to output 7.4V nominal (8.4V fully charged), providing a strong power supply for robotics platforms, microcontrollers, and DIY projects.

Pre-Stripped Color-Coded Lead Wires: Pre-wired with flexible red (positive) and black (negative) leads for instant soldering onto circuit boards or connection to terminal blocks and breadboards.

High-Impact Enclosed ABS Shell: Durable black ABS composite housing securely cradles both cylindrical cells, protecting batteries from physical shocks, drops, and accidental shorting against chassis surfaces.

Heavy-Duty Spring Contacts: High-tension nickel-plated steel spring terminals maintain solid contact pressure to deliver stable, continuous electrical current under movement and vibration.

Molded Polarity Identification: Clear positive (+) and negative (-) symbols embossed into each slot prevent reverse polarity orientation during battery installation.

Integrated Mounting Screw Holes: Base plate features pre-drilled countersunk mounting holes for clean, secure attachment inside project boxes or custom robot frames.

Body Material: High-impact, flame-retardant ABS plastic.

Terminal & Lead Wire Material: Nickel-plated steel spring contacts with color-coded copper lead wires.

Technical Specifications:

Cell Support: 2x 18650 Li-ion Cells (Series configuration, 7.4V nominal).

Lead Wire: Approx. 15cm color-coded insulated lead wire.

Color: Matte Black.

Usage Advice: Install two 18650 batteries of the same capacity and charge level to ensure balanced series discharge performance across both slots.

Maintenance: Keep spring contacts free of dust and residue; clean gently with isopropyl alcohol if necessary.

Essential Power Tray for Hardware Projects: Position as an indispensable series power supply unit for custom Arduino chassis, RC vehicles, portable audio gear, and IoT prototyping.

Highlight Ready-to-Wire Leads & 7.4V Series Power: Emphasize the convenience of pre-installed lead wires and reliable 7.4V series output for powering microcontrollers and motor drivers.

Recommended Cross-Sell Add-ons: Pair with 1 x 18650 Battery Holder SMD, 2 x 16850 cell box with cover/ON-OFF, 18650 7.4 battery box with DC plug, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Essential: Display prominently on your Battery Holder & Cases collection page as a top-selling dual-cell power option.