18650/26650 Battery Pack Box with Cover and Switch for DIY Parallel/Series Configuration, 3.7V

This battery pack box is designed for DIY enthusiasts seeking flexibility with power configurations. It accommodates both 18650 and 26650 batteries, allowing for parallel or series arrangements to suit various power needs. The box includes a durable cover to protect batteries during use and transport, while the built-in switch ensures convenient power control. Operating at 3.7V, this versatile accessory is ideal for hobbyists and electronics projects requiring custom battery setups. Manufacture country: China Instructions included: No