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http://www.ebay.com/itm/RC-Q-Brain-4-x-20A-Brushless-Quadcopter-ESC-2-4S-3A-SBEC-/261560020528?hash=item3ce6312e30 or this?

http://www.ebay.com/itm/ESC-20A-Programmable-Electronic-Brushless-Motor-Speed-Controller-2-4S-5V-2A-BEC-/311307930729?hash=item487b660c69 Are these reliable? Good company? Thanks, 1251452

Thank you for your reply, I know, when I said 14.8, I was referring to the volt input. What I was wondering is that if the 5040 props draw less than 12 amps on 14.8 volts input, what would be the amp draw on a fully charged 4s? Thank you, 1251452

Both the MT2204 and MT2204II.

This chart shows that they only draw 10.7 amps with the 5040s but at 14.8. How about a fully charged 4s?

Thank you for your reply, If I plan to use only 5040 props what is the amp draw at full throttle on 4s? Thank you, 1251452

Does this look good? http://www.ebay.com/itm/Lot-Of-5-Afro-20Amp-ESC-Multirotor-Speed-Controller-With-BEC-SimonK-Firmware-/331662787446?hash=item4d38a48376

Thanks for the fast reply. How much gain in power and speed do I get with 4s over 3s? I know that the original BLHELI escs supported 2-4s. How long is not long? Thanks, 1251452

Thanks for your reply, Are there any escs you recommend? This is pushing my budget a bit, as I don't want to go above 275. Would the original setup work? I have seen some youtube videos of this build functioning with 4s. Is this maybe not super healthy, but do-able with the original parts...

Also, are 12amp escs good for the emax 2204II you recommended?

Thank you for your reply, When you say lower kv, bigger props I assume you are saying that in terms of amp draw? The way I understand it (and please correct me if I'm wrong) is that lower kv means the motors spin slower, allowing for a bigger prop to produce more thrust but not more amp draw...

Thank you for your reply, Is a 2206 size motor too big for the weight? I don't plan to over-prop so I'm not sure of the torque required. Also, does a motor's cell rating really hard enforced? Or can a motor that says 2-3s run a 4s battery? My budget is very small as I just lost about 250...

Thank you for your reply, What motors do you recommend? Thanks, 1251452

Hello everyone, This is my second quad build as my first one flew away for some reason... I am a bit of a noob still. I am trying to build this second quad to be leaner and faster than the old one with a 4s lipo on it. frame...