HEAT

There are several reasons equipment may heat up, if this is the case here are possible causes. Too hot - greater than 140F/60C. Many times there may be more than one reason for over heated equipment. In this case choose the most logical fix.

Motor - too hot
Possible Causes
- No thrust bearing, creating extra resistance when thrust is applied
- Binding within the shaft. When the motor is disconnect, rotating the prop shaft should be done effortlessly
- Too much prop
- Too much run time

ESC - too hot
Possible Causes
- ESC not properly matched to motor - exceeding continuous current limit. A larger rated ESC is needed
- Too much run time

Cells - too hot
- Drawing too much current from the cells. Increase capacity or C rating. Only use a maximum of 80% of the calculated max discharge rate
- Too long of a run time. Be certain to not dump the packs or hit the Low Voltage Cutoff


If all components are running less than 60C or 140F, your setup is sufficient.

I also like to use a Data Logging device to record what my system is using in terms of power. The product I use is the Eagle Tree Data Logging unit. I can graphically see the amount of current I am pulling during constant throttle while the boat is near maximum speed. I can also note the peak current pulls that happen during acceleration of the boat. Although these are higher and sometimes significantly higher, these peaks only last for a few short seconds. The watts up meter, different than the Eagle Tree, will hold these values in memory and may miss-lead you when you view your system is pulling a significant amount more than it actually is.