The Sensored Version of the 10BL120SD can support 2-3S LiPo (4-9 cell NiMH).
The fan port of the 10BL120SD ESC is powered directly from the battery voltage.
When running any battery over 7.2V you will need to power the fan from your receiver(regulated power), or swap the fan out for a 12V compatible fan.
Running the standard fan on a 3S LiPo (9 Cell NiMH) on the fan port will damage the stock fan.
If you have any questions feel free to send an email to firstname.lastname@example.org with any questions.
We are here to help!