2in1 Battery Converter This battery converter is designed to provide versatility and convenience for your power tools. It features a USB interface, allowing you to power your tools and charge your mobile phone at the same time. With this converter you can install two batteries simultaneously, providing extended runtime for your tools and reducing interruptions during work. The converter can be connected to an external charger, enabling you to charge the batteries without removing them from the converter. This saves time and keeps your tools ready for use. A secure locking mechanism locks firmly onto your batteries, delivering a stable and secure connection for reliable power during operation. Key attributes Function: 2in1 power and charging capability with USB output; supports two batteries simultaneously; external charger compatibility; secure locking. Compatibility: accepts two batteries at once; allows external charger connection without removing batteries. Performance: stable locking mechanism ensures batteries stay in place and deliver reliable power during use. Use scenarios On a job site: power your cordless tools via the USB interface while also charging your mobile phone, reducing downtime between tasks. In a workshop: connect to an external charger to recharge batteries without removing them from the converter, keeping tools ready for continuous work. Outdoor or longduration projects: run two batteries at once to maximize runtime and minimize interruptions during extended tasks.