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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.
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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Arduino CNC Shield
- Shield type:Â Arduino Nano
- Firmware:Â GRBL
- Modular stepper motor drivers:Â 3
- Limit switches:Â 6
- Micro-stepping:Â 1/16
- Coolant enable
- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
- Latest Arduino CNC Shield Version 3.51

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