18650 Battery Holder 3-Slot

Description

Provide a high-capacity, rugged power source for your portable electronics with the premium 18650 Battery Holder 3-Slot Case. This premium electronic storage enclosure is engineered to hold three standard 3.7V cylindrical 18650 lithium-ion cells in a series configuration, combining their output to deliver a powerful ~11.1V DC nominal power supply (reaching up to 12.6V at full charge). Outfitted with pre-stripped color-coded flying lead wires, it allows for seamless soldering or direct connection to terminal blocks and breadboards. The compact chassis design features heavy-duty internal spring clips that keep your lithium cells securely retained during high-vibration activities, while making battery replacements and external charging incredibly quick and straightforward. You can easily connect this holder to your favorite microcontroller platform. To build your next autonomous mobile robot, wireless sensor node, or high-drain automated setup, check out our compatible Arduino development boards.

Features

• High-Tension Spring Contacts: Designed with high-pressure premium metal leaf springs that maintain constant contact to prevent loose power connections or voltage drops during heavy movement.

• Color-Coded Flying Leads: Features flexible, pre-stripped red (positive) and black (negative) wires for direct, reliable, and hassle-free integration into your circuit layouts.

• Series Output Wiring Matrix: Hardwired internally in a series configuration to efficiently combine cell voltages into a unified high-voltage triple-cell output line.

• Low-Profile Space-Saving Design: Minimal physical footprint makes it highly efficient for integration into compact enclosures and custom mechanical builds.

• Rugged Impact Resistance: Molded from heavy-duty, impact-resistant industrial black plastic to securely isolate and protect your lithium batteries from external friction.

Wiring & Pinout

• Red Wire (Positive / $+$): Connects to the continuous positive DC voltage input line of your voltage regulator, buck converter, or power management module ($\sim 11.1\text{V}$ to $12.6\text{V}$).

• Black Wire (Negative / Ground / $-$): Connects to the common system Ground (GND) of your electronic circuit.

Common Applications

• Robotics & CNC Platforms: Provides the core heavy-duty power supply for multi-motor autonomous robots, high-torque smart cars, and mobile arm actuators.

• High-Power Arduino & IoT Prototyping: Ideal for running power-hungry remote microcontrollers, long-range wireless transceiver nodes, and automated field electronics that require a $12\text{V}$ supply line through an external step-down buck converter.

• DIY 12V Power Packs: Serves as the cell storage module for custom $12\text{V}$ backup batteries, field lighting rigs, and portable field test equipment when paired with a 3S BMS (Battery Management System).

• Audio Electronics: Powers portable amplifier boards, custom boomboxes, and DIY audio gear requiring a clean, low-noise high-voltage DC source.

Specifications

• Compatible Cell Size: 18650 Cylindrical Lithium-Ion Batteries (3.7V Nominal).

• Cell Capacity Slot Count: 3 Cells (3-Slot Configuration).

• Output Voltage Range: ~11.1V DC (Nominal) to ~12.6V DC (Fully Charged).

• Wire Interface Output: ~15cm Pre-stripped Fly Leads (Red and Black).

• Material Base: High-Impact Black ABS/PP Plastic.

• Terminal Contact Springs: Nickel-Plated Spring Steel.