As far as I know a cool, but not 65 degrees dry enviroment. I think your you garage would be fine. Just dont set them in front of a window to bake in the sun. I bought my Lipo Bag from Hobbypartz for like $5. Im guessing 3 would do it. Two in each and one alone. You could also look into an ammo box. I think that would work to keep them in your home. Ive stored my lipos outside the bag and never have a problem. Just make shure there balenced and stored at 3.86-3.87v per cell in a cool dry place and maybe peek on em every few days! I think you'll be fine