【10-Pack PCB Mount 18650 Battery Holders】 Includes 10 single-slot holders, designed for flat-top 3.7V 18650 lithium batteries. Ideal for PCB mounting and electronic projects. 【Nickel-Plated Steel Pins for PCB Soldering】 Features durable steel spring contacts with a nickel-plated finish, ensuring strong conductivity and secure battery placement. ⚠ Not designed for bending—only for PCB insertion and soldering. 【DIY & Electronics Applications】 While perfect for DIY projects, this holder is primarily intended for PCB mounting. Not recommended for applications requiring frequent battery removal. 【Compact & Secure Fit】 The precise slot design keeps batteries firmly in place, preventing loose connections and ensuring reliable power delivery. 【Safety Warning - Sharp Pins】 ⚠ The steel contact pins are sharp. Please handle with care to avoid injury. Keep out of reach of children. Upgrade your PCB projects with this 10-pack of 18650 Battery Holders, designed for flat-top 3.7V lithium batteries. Built with steel spring contacts and nickel-plated pins, these holders provide a secure and efficient battery connection for PCB applications and DIY electronics. 🔹 Designed for PCB Mounting – Features sturdy steel pins, pre-sized for direct PCB soldering. ⚠ Not designed for bending or use in free-floating configurations. 🔹 Nickel-Plated Steel Contacts – Ensures strong conductivity and secure battery placement, minimizing voltage drop and ensuring consistent power delivery. 🔹 Flat-Top Battery Compatibility Only – ⚠ Not compatible with button-top (pointed) batteries. Always insert positive terminal first, then remove from the negative side first to prevent short circuits. 🔹 Compact & Versatile – While perfect for DIY electronic builds, this holder is primarily designed for PCB mounting in power supply modules, battery management systems, and custom circuit boards. 🔹 ⚠ Safety Warning – The steel contact pins are sharp. Handle with care to avoid accidental injury, and keep away from children. Package Includes: ✔ 10x 18650 Battery Holder (1-slot each, PCB mount)