New R30A BLHeli_S ESC arrived from Sunnysky, so let’s take a quick look at the features, build quality and spec.
The Sunnysky R30A ESC’s are pretty small and light weight mini quad ESC. They are BLHeli_S ESC, and the BB2 MCU they support DShot600 and Multishot.
- Voltage Input: 2S-4S (they also have a 2S-6S version, but heavier)
- Current Rating: 30A (40A burst)
- Weight: 6.8g including 10cm of 18AWG wires and heatsink
- BB2 Processor
- Fortior FD6288Q Gate Driver
- Support DShot600
Size wise it’s very small, close to the Emax Bullet 30A.
Close Up Photos
They comes with heatsink. I wanted to remove it and have a look at the FET’s, but it was impossible. They are glued down to the board so hard, the heatsink started to bend as I was trying to lift it. I was worried it might damaged the components beneath so I gave up. :)
At least that means you are not going to lose these heatsink in a crash :) Apart from cooling, they also protects the ESC from prop strike and other physical damage.
Soldering quality of the ESC is really solid. There is a metal bar as you can see on the top of the picture below. I have to ask Sunnysky what it’s for. At first I thought it was for reducing resistance in the circuit, but It’s not connected to the ground or power as I checked with a multimeter.
More info to come when I discover more. I will also test them on a new build soon with the Sunnysky R2305 motors. Stay tuned