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No final sale items

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Battery Holder for Lithium-...

A battery holder for Lithium-Ion 18650 2-cell configurations is designed to securely hold and connect two 18650 Li-Ion batteries. Depending on your needs, you can find holders with different wiring configurations:

Types of 18650 2-Cell Battery Holders

  1. Series Connection (7.4V Output)

    • Batteries are connected in series, doubling the voltage.
    • Output: 7.4V (nominal), 8.4V (fully charged).
    • Used in robotics, DIY power banks, and RC projects.
  2. Parallel Connection (3.7V Output)

    • Batteries are connected in parallel, doubling the capacity.
    • Output: 3.7V (nominal), 4.2V (fully charged).
    • Ideal for increasing battery runtime at a fixed voltage.
  3. Open-Frame vs. Enclosed Design

    • Open-Frame Holders: Exposed battery slots, easy to swap cells.
    • Enclosed Holders: Protects batteries, often with a cover and lead wires.
  4. PCB-Mounted vs. Wired Holders

    • PCB-Mounted: Designed for direct soldering onto circuit boards.
    • Wired Holders: Comes with leads for easy connection.

Features to Look For

  • Material: Heat-resistant ABS plastic or polycarbonate.
  • Spring Contacts: Nickel-plated for better conductivity.
  • Mounting Options: Screw holes, snap-in clips, or adhesive backing.
  • Built-in Protection: Some holders have built-in overcurrent or polarity protection.
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