If you want to buy the batteries they're available here:
http://www.banggood.com/5x3_7V-500mAh-Battery-For-Hubsan-X4-H107-H107L-H107C-H107D-V252-JXD385-p-88119.html?p=FE09082975018201511I
Pretty pointless video of me flying the drone with the default 350MAH battery vs 500MAH battery. Basically this was just an excuse to test filming and Final Cut Pro editing.
