smooth charging with our solder frees 8 cell 18650 Power Banks , designs for fast charging and compatibilities with multiple protocols like PD3.0, ensuring efficient power delivery for your devices With its smooth unique designs, this Power Banks not only meets the demands of modern technology but also integrates seamlessly into your lifestyle, ensuring your devices stay charges wherever go Ideal for enthusiasts and DIYers who enjoy customizing their own power , this requires flat top 18650 batteries and supports a minimum capacity of 10,000mAh for best Performances for outdoor activity or everyday use, this Power Banks offer high reliability with build in protections against over electric , over current, and short circuits, making it a dependable companion for your mobile devices This features Double USB outputs, Type C inputs /output, and a strong LED light function, all housed in a strong shell, providing Stable Performances without the risk of damaging the mainboard from incorrect battery installation