I bought the Acer Aspire S7 from the Microsoft store in Toronto, after using for a week I realized that the internal battery only lasted between 3 to 4 hours, I went back to the Microsoft store to buy the external add-on battery pack, I was told they do not carry any Acer products other than the laptops, they told me to buy it on Acers web site.
That is when I went into Acers spin cycle. The Canadian web site does not carry it, the American web site will not ship to Canada. The emails I sent to Acer asking about the external battery add-on came back telling me that that battery was still under warranty & to send my laptop in to be repaired. I called them up in the USA & was told they can not ship to Canada, but to call their tech number & they could sell me the battery & ship it to Canada. After 45 minutes talking to Daisy in tech support I was told she can not ship to Canada. I then went to Acer Canada's head office, where they gave me a 1-800 number to call, it was some authorized company in Canada & he said he would ask Acer in Texas if they had the battery, I never heard back from him. The moral of the story is I should have bought a Mac Book