Eight 18650 cells housed in a box with a USB TypeC connector and dual USB outputs; designed for solder assembly for enthusiasts. Builtin protections include overcharge, overdischarge, and shortcircuit protection, delivering safe, stable performance while allowing you to tailor the setup to your needs. Ideal for individuals and hobbyists who want to their own power solution without soldering or complex tools. Constructed from durable ABS material; available in black and white; automatically identifies charging current and supports dual USB outputs for versatile use. Use scenarios: Portable field power for cameras, lights, or other USBpowered gear during shoots, camping, or remote locations. DIY electronics projects and prototyping that require a configurable, solder power source. Travel or emergency backup power for USB devices, keeping phones, tablets, and small gadgets charged on the go.