Battery Holder 2x18650

15.00 EGP

The 2x18650 battery holder is a plastic housing designed to securely hold and connect two 18650 Li-ion batteries, providing a stable and convenient power source for electronic projects and portable systems. **Technical Specifications** * **Supported Battery Type:** 18650 Li-ion batteries (Rechargeable). * **Capacity:** 2 cells. * **Connection Method:** Standard series connection, providing a nominal voltage of 7.4V (up to 8.4V when fully charged). * **Output Type:** Flexible connecting wires (~15 cm long; red for positive +, black for negative -) or metal pins for direct PCB mounting. * **Housing Material:** Durable, heat-resistant, and insulating ABS plastic. * **Internal Contacts:** Nickel-plated steel contacts and springs to ensure firm contact and stable current flow. **Key Features** * **Secure Fit:** Prevents batteries from shaking or slipping during the movement of robots or portable devices. * **Safe Alternative to Soldering:** Eliminates the need to solder wires directly onto lithium battery terminals, protecting cells from heat damage and ensuring safety. * **Mounting Holes:** Features recessed screw holes in the base for easy mounting onto robot chassis or project structures. Common Uses Powering robotic vehicles and engineering projects requiring voltages higher than 5V (e.g., driving DC motors via L298N or TB6612FNG motor drivers). Main power source for embedded system projects based on Arduino, ESP32, or Raspberry Pi (when using a suitable Buck Converter). Projects requiring a rechargeable and easily swappable power source. Important Operational Notes Polarity (+/-): Always ensure batteries are inserted in the correct orientation as indicated inside the holder to prevent short circuits. Charging Management: When using the holder in a series configuration, it is recommended to connect a balanced charging and protection circuit (BMS 2S 8.4V) to ensure both batteries charge safely and evenly.