title_body: What LiPo C-rating is best for a small 65mm quad?
upvoted_answer: C rating is very much a non-science. There’s no real way to compare between brands, so just go off the idea that the higher the C value, the better.
  
  If you want to do it a little more mathematically (though it still won’t be completely accurate), find out the maximum current draw of each of your motors and other electronics, add them up and then add a bit (maybe 20%) for some extra safety, and this will be your maximum current draw.
  
  Divide this by the capacity of your battery in amp-hours (so 0.45 for a 450mAh battery) and this will give you your ideal C rating.