The LittleBee is one of the most popular ESCs on the market so I thought that I would make a review for you guys about it. I’m going to be looking at the LittleBee 20A Pro. It is important to note that the only difference between the LittleBee 20A Pro and the original LittleBee 20A is the Silabs F396 MCU and the fact that it works with 50Mhz and not 25MHz.
Okay, so the LittleBee 20A Pro is exactly the same size as the older one. However, they have made the cables shorter meaning that it only weighs 5.9 grams. Everything else is largley the same. It has a MOSFET: AON7418, gate driver: MP1907 and a voltage regulator: UTC LP2950.
Lets take a closer look at the voltage regulator. I wouldn’t recommend that you that you use your LittleBee 20A Pro with 6S batteries as the voltage regulator can burn the ESC. Thus, I would stick with 4s batteries (or 3s batteries.)
One thing that I never experienced but I heard a lot about was how lots of pilots have had voltage spikes with the old LittleBee. This is something that I wouldn’t expect to see in the newer LittleBee but I cannot confirm that. However, if your worried about this sort of thing happening, you can always prevent it by using a 25V22uF capacitor.
I recommend that you buy this ESC.