Tlily - 4pcs 21X18650 Battery Case Solderless External pd with Light 18650 Charging Detachable Portable diy Shell

1. Function: Digital display with power supply, detachable, no welding, with anti-reverse connection protection, can charge 21 18650 flat head batteries, when the built-in battery can be used as a power bank, the normal version requires a charging cable, charging without The version does not require a charging cable and can be charged quickly. 2. Handmade DIY mobile power kit, self-configured mobile power supply, larger battery capacity and more , can better solve your charging problem. 3. Suitable for people with larger charging needs, equipped with 3 kinds of charging interface, for Micro, for , for Type-C can charge the charging box. 4. With power display, you can know the remaining power anytime and anywhere, and better charge your mobile phone or other devices. 5. Comes with a lanyard, more convenient to carry, allowing you to take it wherever you go. Model: T21 Series with light Battery: 18650 x 21 type flat head battery (free welding) Size: Thickness 62mm Width 84mm Length