Power Bank

[Romijnc]

Where can I buy another HTC Vive power bank, I recently got wireless for my full kit Vive pro. Though I have run into a wall due to me playing a lot of Vr the 2.5 hours on the power bank isn't enough for me in terms of how much time I want to play, so I was looking to try a buy another power bank but ran into another problem I can't order or buy one on Vive Canada being a Canadian, this was awful and looking at all other suggestions of 3rd party power banks are all from American Amazon. I'm looking for a solution to this and I'm grateful to those who respond..