Got a set of RG20A ESC for my next mini quad build from David, Rotorgeeks. This ESC weights about 13 grams with some 11cm long 18AWG wires. Bare ESC without cables and wires claims to be 4g only. Compared to the DYS SN20A ESCs, 7.4g with wires and 2g without.
Get your RG20A ESC from Rotorgeeks here.
His 12A version of these ESCs (RG12A) were a great success, in his torture tests video where he shown how tough those ESCs were, amazed many people. I am looking forward to his torture tests with these 20A ESCs.
I have yet tested these ESCs, and I will put them straight onto my next quadcopter build. I was thinking to do some torture tests myself, but I was only sent four, if I damage one then I would have to build a tricopter instead :D Maybe in the near future.
Bad DYS SN20A ESC
Recently There has been lots and lots of report of the DYS SN20A ESC blow-up. It’s now just as infamous for prone to fire as the KISS ESCs. Some blame it’s a particluar bad batch. I personally have not had one exploded yet, but I recently bought 8, and 2 of them were faulty, so clearly there is a quality control issue.
Here are some pictures of the burnt ESC from our Multicopter group.
I personally will stop buying the SN20A ESCs for now. I would rather use the Blue Series 20A, although they are heavy (20g each), at least I know they are very very reliable and unlikely to fail mid flight.
My Rotorgeeks RG20A ESCs
I believe Rotorgeeks actually sent me the “RotorGeeks RG20A Starter Pack“, which has 4 x RG20A ESC, a programmer and a UBEC.
Anyway you can buy these items separately as well.
If you don’t know about Arduino and can’t be bothered to learn it, this programmer is really handy.
And as you know these are Opto ESC and has no BEC (no 5V), so you will need a 5V voltage regulator for your FC and RX. The UBEC that comes with this package is great as you don’t have to worry about it.