I just ordered a storm srd127 drone rtf, like anything u buy u go through and tighten all the bolts up, they where all loose for one for two I ran 1 3s 450 mah through the drone with no problem, and then I ran the 2nd battery 2 minutes into the flight and it dropped out of the sky, it turns out the 15a ESC and maybe the control board went up in smoke, so it say on there website you have 3 day from the day u purchase it to contact them if there has bin any problems with my purchase via email, i tried 3 time yesterday the day I received it, and today several time email and paypal filed a claim so maybe now I, ll hear something, all I want is them to fix it or replace it, seeing how I really enjoy the SRD127 I think its great, they would be a much better company if they had a way different customer service, love the drones but hate the people that work for them, all I want is a working drone, seeinf how I have stage 4 colon rectal cancer and all I, m trying to do is enjoy and have fun with the time I have left on this earth...