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Oct 05, 2016, 03:56 PM
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New Product

GoolRC 12A Brushless ESC BLHeli with 5V/1A BEC. [$5.99]


Let's assume, you have all the components needed for your new build, for which you are anxiously waiting to finish, but you don't have the speed controllers! Which one will you choose from all the offers available on the market?!

To your attention, I want to present, what seems to be a new speed controller from quite a new player on the market - GoolRC 12A Brushless ESC with 5V/1A BEC which runs BLHeli.



Specifications:
  • Brand: GoolRC
  • Continuous current: 12A
  • Burst current: 18A @ 10s
  • BEC: 5V/1A BEC
  • Power supply: 2-4S LiPo battery
  • Size: 25 * 15 * 4mm
  • Weight: 8g

The above specifications are provided by the GoolRC and they're not far from the reality.

In fact, the weight of the ESC is 9g. While the size of the PCB is 27.15mm x 14mm (the heat shrink length is 40mm), the ESC on it's ticker place measures 5.6mm.

These ESC's have Silabs F850 as main CPU, so they run fine with BLHeli firmware.



For the FETs they use, what it looks to be - AON7534. These FETs are rated much higher than 12A, but the performance at 70degree Celsius can drop down to 16Amps. So, I would not run them on bench for long times but don't see any problem in flight, while they get enough airflow to cool down.



The build quality can be a little bit better. There are exactly three diodes which aren't mounted perfect, but that does not make them run worse.

While checking the PCB with other ESC brands, I have found that GoolRC 12A are looking very similar to Flycolor Fairy 20A, which in some places it is advertising as "No Dampened Light support".

In any case, for the price, these ESC are very competitive.
The ESC's are sold on Amazon.com for 29.99$/set and GoolRC is offering additionally a 20% discount using promo code VIGTT5JF
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Oct 05, 2016, 09:58 PM
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Isaac96's Avatar
Definitely need better soldering on those diodes..
Do these support bootloader on signal pin?


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