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2×18650 battery holder without a cover
2×18650 battery holder without cover—spring-loaded contacts for DIY battery packs, Arduino projects, and portable electronics.
Description
The 2×18650 Battery Holder without Cover is a convenient and reliable solution for mounting two 18650 rechargeable batteries in series or parallel configurations. Designed without a protective cover, it allows easy access for battery insertion and replacement, making it perfect for DIY electronics and portable power projects.
This holder features spring-loaded contacts to ensure stable electrical connection and minimal voltage drop. It is commonly used in battery packs, flashlights, Arduino/ESP32 projects, robotics, and other battery-powered devices. Its compact and durable plastic design provides a lightweight and dependable solution for various applications.
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- Â Support 802.11b / n / g wireless standard
- Independent development MCU platform
- High cost performance
- Support UART / GPIO data communication interface
- Support STA / AP / STA + AP coexistence mode of operation
- Support SmartLink intelligent networking (APP)
- Support wireless upgrade firmware
- Support WPS network configuration
- Built-in onboard antenna &Temperature and humidity sensor
- RGB three-color light adjustable
- Provide rich AT command set configuration
- Free AiCloud cloud service for debugging
- 3 AA batteries / 5V adapter power supply
- Size: 61.6mm x 56.2mm;
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