This video is to show how to install or mount your external battery for your electric unicycle. br br I bought an external battery from br br The original mounting is via a very tough velcro to stick onto the side of the electric unicycle which is very easy to drop off and make the electric unicycle very unbalanced. br br My method of mounting or install the electric unicycle is more balanced and secure. br br - bicycle handle is bought from bicycle shops br - PVC pipe is bought from aquarium shop br - Hard foam is bought from Art Friend in Clementi Central br - Velcro can be bought at any hardwarebookstoreart friend but recently hard to find.