Here is a complete, optimized e-commerce product listing for the Double Cell 18650 Li-ion Battery Holder (2-Cell), formatted with a professional title, bulleted features, a detailed description, technical specifications, usage tips, and relevant hashtags.
Product Title
Double Cell 18650 Battery Holder Case – 2-Slot Series Storage Box with Wire Leads for 7.4V DIY Electronics & Arduino
Short Key Features (Bullet Points)
Dual-Cell Capacity: Holds and secures two 18650 rechargeable lithium-ion cells simultaneously.
Series Output (7.4V): Internally wired in series to deliver a nominal 7.4V output, perfect for powering Arduino boards, motor drivers, and robotics.
Pre-Stripped Copper Leads: Comes with durable pre-attached red and black wire leads for effortless soldering and breadboard integration.
Rugged ABS Plastic Construction: Built with heavy-duty thermoplastic to withstand high ambient temperatures and protect cells from shifting.
Secure Leaf-Spring Contacts: Features high-tension metal springs and corrosion-resistant contacts ensuring stable, low-resistance power delivery.
Product Overview & Description
The Double Cell 18650 Li-ion Battery Holder is an essential power-accessory designed for makers, hobbyists, and electronics engineers who need a higher voltage source for their projects. Capable of housing two 18650 cells in series, this open-frame storage case outputs approximately 7.4V DC, making it an ideal power pack for Arduino microcontrollers, robotic chassis, LED lighting arrays, and portable electronic prototypes.
Crafted from high-grade ABS plastic with secure leaf-spring terminals, the holder keeps your batteries firmly locked in place while offering smooth installation and removal. Whether you're building an autonomous robot car or setting up an external power bank, this 2-cell holder provides a clean, safe, and reliable connection.
Technical Specifications
Feature / Parameter | Specification |
Supported Battery Type | 2 × 18650 Rechargeable Lithium-Ion Cells |
Circuit Configuration | Series Connection (Sums voltage of both cells) |
Nominal Output Voltage | ~7.4V DC (Fully charged ~8.4V) |
Housing Material | High-Impact ABS Plastic (Black) |
Contact Material | Nickel-Plated Steel with High-Tension Springs |
Wire Leads | Pre-stripped red (+) and black (-) copper wires |
Dimensions (approx.) | 76 mm × 40 mm × 20 mm |
Package Includes
1 × Double Cell 18650 Battery Holder Case with Wires
Quick Usage & Safety Tip
⚠️ Polarity & Voltage Warning: Because this holder connects two cells in series, double-check your battery orientation against the printed + and - markings before powering 5V logic circuits to prevent over-voltage damage.
Hashtags & Search Keywords
#18650BatteryHolder #DualCellHolder #BatteryCase #7V4Battery #ArduinoPower #DIYElectronics #RoboticsPower #LithiumIonHolder #MakerMovement #Prototyping #BatteryStorage #ElectronicsComponents #PowerModule #HardwareHacking #SeriesBatteryBox



















































