I smoked the AE-2 after about 10 minutes on 3s. and a 17t reedy motor. Some may last but mine did not. good luck."thumbsup"
The AE-2 will run 3s no problem with a BEC, I destroyed various brushed motors and the esc never missed a beat.
Important thing is the AE-2 is rated to a 19T limit, below that it's not designed to handle the current, 106A max and I'm sure that's probably burst and not continuous, after all it's a tiny, crawling esc not a MMP. The AE-2 weighs 1.6oz, by comparison a CC Sidewinder weighs 2.2oz, an RX8 weighs 2.7, the difference is the amount of copper added for increased power handling on the board and related components.
<table class="style24" border="0" cellpadding="0" cellspacing="1" width="100%"><tbody><tr><td colspan="2">
Axial AE-2 Forward Reverse ESC w Drag Brake
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">Input Voltage:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
6 cell Ni/2S LiPo
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">Size:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
43x31.5mm (1.7”x1.24”)
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">Weight:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
45g/1.6oz
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">
Motor Limit:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
19T
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">On-Resistance FET:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
.0018
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">
Rated/Peak Current:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
106A Peak
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">Braking Current:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
106A Peak
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">BEC Voltage/A:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
5.0V/2.0A Peak
</td> </tr> <tr> <td align="right" nowrap="nowrap" valign="middle" width="209">PWM Frequency:</td> <td align="center" nowrap="nowrap" valign="middle" width="457">
6 KHZ
</td></tr></tbody></table>
I'd run 3S and just stay 20T or above, the axial 27T is a good compromise and I bet a 35T is pretty awesome but haven't ran one. "Volt up, gear down" I believe the saying goes, higher voltage lowers the current demands, and will actually lower temps is some conditions. The 3S advantage is a 27T on 3s will be slightly faster than a 20T on 2S with the same gear, and since somebody will think I'm full of shite, some math.
Differential Ratio: AX10 2.923076923076923
Transmission Ratio: AX10 2.6
Other Ratio: 1
Spur Tooth Count: 87
Pinion Tooth Count: 16
Total Voltage: 8.40
Motor KV: 3216
Tire Diameter (inches): 6 swampers ballooned out approx guesstimation
Spur/Pinion Ratio: 5.44 : 1
Total Ratio: 41.325 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Rollout: 0.46:1
Total Motor Speed: 27014.4 RPM
Vehicle Speed: 11.67 mph (18.74 km/h)
Effective KV Value: 3216
KT constant: 0.42 oz-in/A
Now with 25T (27's not an option) and 3S
Differential Ratio: 2.923076923076923
Transmission Ratio: 2.6
Other Ratio: 1
Spur Tooth Count: 87
Pinion Tooth Count: 16
Total Voltage: 12.60
Motor KV: 2588
Tire Diameter (inches): 6
Spur/Pinion Ratio: 5.44 : 1
Total Ratio: 41.325 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Rollout: 0.46:1
Total Motor Speed: 32608.8 RPM
Vehicle Speed: 14.09 mph (22.63 km/h)
Effective KV Value: 2588
KT constant: 0.52 oz-in/A
The program is available here
R/C Calculations
and I found it from a link on Tekin's page, so... just saying.
IMO their electronics are borderline fantastic, especially for an RTR. I liked the radio enough to use one with my new Losi SCTe. The receiver is tiny "thumbsup" The esc is water resistant and can handle most reasonable crawling/basher scenarios. Apparently new receivers are available for @10$ too, idk yet for sure I haven't finished reading that thread :roll:
Someday I'll get one of those fancy radios with the TV and cup holder but right now it's just an added expense. My buddy has a fancy Spektrum radio so I commandeered his unused wraith radio 8)