5V 2A 1x 18650/21700 USB Type-C Battery Charger Case DIY Power Bank Box For Phone Electronic Charging Not Including Batteries

Features:1. Welding-free design: Tpye C interface welding-free installation, DIY assembly is easier and more convenient2.Compatible with multiple types of batteries: support for 1 section 18650/21700 battery, flexible adaptation to a variety of battery types3.5V2A fast charging support: provide 5V2A fast charging, high charging efficiency, save time.4. Portable and lightweight: compact sleeve design, suitable for making small and portable DIY charging treasure5. Multiple safety protection: built-in overcharge, overdischarge, short circuit protection, to ensure the use of safe and reliableParameter:Adaptable battery: flat head Single 21700 battery or single 18650 battery (not included in the delivery) Color: black, silver, blue, red (free choice)Material: aluminum alloyOutput: 5V/2.1APower: 10WPackage include:Welding-free battery box * 1 (style of your choice)