The power draw wouldn't be enough to make much difference. Besides, it wouldn't work past half-way through the build
I noticed a lot of things that were wrong with the info given in the show, as well as more than enough evidence to know you are not very experienced/knowledgeable with this but you have more than enough to at least make a working portable. I'm not being negative at all, I mean we were all n00bs at some point and I can clearly tell you're not stupid in the subject. Nice guide for complete newbies as it is super easy, but now you should stick around and work on making a super nice one