Features:
This is a DIY Box, Free Welding;
You can use this Box/Case and connect them in Series or in Parallel to make a Greater Capacity or Higher Voltage to 24V.
Don't suggest to use voltages higher than 24V.
Color: We Have black and transparent blue etc, color random, no color choice!
Battery: 3 pcs 18650 Batteries, Batteries Not Included, and better use with the same 18650 Battery.

Package content:
1Pcs Free Welding Power Bank DIY Box

If there is any questions, just contact us, we will alway be here for you.