Try asking local vape shops if they can give you one. Not sure specifically for the omega tho. I needed a new one for my patriot months ago and ecig city8 in San Jo gave me a spare from an igo-w. It worked fine.
Nike factory store in cabazon should have a good of amount of mc trainers as well. I was looking for an 8.5 a couple days ago and they said they had 32 pairs of that size. Not sure about now and if they do phone orders.
(951) 849- 0466
Get the new sony vtc 5 battery and an intellicharger. I have the trust fire and it takes forever for my batteries to charge. Looking to get an intellicharger myself.