RC-Monster Forums - View Single Post - MMM 2200 on 6S with 3905 Emaxx and zippy 5000mah 20C cells

hemiblas · 11:46 AM

Ok, I got some data for you guys. I fully charged the lipos to 12.6V. I ran up and down my street going basically all out, speeding up to max speed, then slowing down and a quick turn and doing the same thing back and forth. All asphault. It was 88 degrees outside and the sun was shining. My MMM was 114(this was the warmest I could measure pointing inside the case, outside case temps were even cooler) at the end of the run. The batteries were between 105 and 110 degrees. The motor was at 175 degrees. This is with just the stock emaxx 3905 and no cutouts for airflow. Just the standard lid. The batteries settled to 11.38 after the run and I couldnt get a full run but I'm pretty sure I was close. I could tell the power dropping off after a bit towards the end but the lvc didnt cut off. My batteries on my radio started to run short so I had to stop the run. I hope this helps. I'm sure there is still at least 20 percent left in the battery pack given the final voltage vs start voltage.

I'm not sure what final speed I am getting out of this setup, but its just scary fast at WOT. I may gear down a bit which would probably help on the motor temps. Keep in mind too, this was all asphault. Offroad the motor would have gotton even hotter, even though I dont think you could keep it going as fast off road.

	(#9)
hemiblas RC-Monster Carbon Fiber Offline Posts: 433 Join Date: Oct 2007	05.31.2009, 11:37 AM Ok, I got some data for you guys. I fully charged the lipos to 12.6V. I ran up and down my street going basically all out, speeding up to max speed, then slowing down and a quick turn and doing the same thing back and forth. All asphault. It was 88 degrees outside and the sun was shining. My MMM was 114(this was the warmest I could measure pointing inside the case, outside case temps were even cooler) at the end of the run. The batteries were between 105 and 110 degrees. The motor was at 175 degrees. This is with just the stock emaxx 3905 and no cutouts for airflow. Just the standard lid. The batteries settled to 11.38 after the run and I couldnt get a full run but I'm pretty sure I was close. I could tell the power dropping off after a bit towards the end but the lvc didnt cut off. My batteries on my radio started to run short so I had to stop the run. I hope this helps. I'm sure there is still at least 20 percent left in the battery pack given the final voltage vs start voltage. I'm not sure what final speed I am getting out of this setup, but its just scary fast at WOT. I may gear down a bit which would probably help on the motor temps. Keep in mind too, this was all asphault. Offroad the motor would have gotton even hotter, even though I dont think you could keep it going as fast off road. Last edited by hemiblas; 05.31.2009 at 11:46 AM.