I can't proceed to check out to Canada for Lipo

Hi, I'm a french Canadian, Last week I try many time to buy fours batterie lipo from your USA warehouse. When a proceed to checkout, I have not shipping option because a size or weight. I leave Nord to Canada and I have no Batteries for my new plane to beginning my news saison. What do you make for me. Thank you so much Ghislain Lavoie