Originally Posted by
Bishop
Keep in mind, there is a couple of models of the YeahRacing fan, and only one can 2s handle pack voltage, from memory Shap got caught out with that one, got one, it fried in short time, but one of the ones he got off me is still going just fine I think.
Yup, what Bishop said. The "regular" YR fan will be killed in very short time if you hook it up directly to your ESC (personal experience).
There's another "High Voltage" version designed for up to 3S voltage - the part number is YA-0256 I think.