Koanhinn 12X18650 Charging Battery Case Weldless Storage Box DIY Power Bank T12 with Light 18650

4. Use the power indicator to inform you about the remaining power anytime and anywhere and charge your mobile phone or other devices. 3. Suitable for people with larger charging needs, equipped with 3 charging interface types, for , for type-C, the charging box can be charged. 1. Function: digital display with, removable, sweat-free, with reverse polarity protection, can charge 12 18650 flat head batteries, if the built-in battery can be used as a power bank, the normal version requires a charging cable, wireless fast charging. The version does not require a charging cable and can be charged quickly. 2. Handmade DIY kit for mobile power supply, self-configured mobile power supply, larger battery capacity and longer service life, can solve charging problem. 5. Comes with a lanyard that is more convenient to carry and allows you to take it anywhere.