Brushed motor wiring questions

[Oppressor]

Originally Posted by lincpimp

You got that right!!!

I may have to get a dewalt 820 and run it on 5s lipo with a MMM. See how good it really is...

Anyone know how effecient they are?

As per that robotwars wiki, about 81% for the old style can

http://www.robowars.org/wikka/DewaltDrivetrain

[lincpimp]

Originally Posted by Oppressor

As per that robotwars wiki, about 81% for the old style can

http://www.robowars.org/wikka/DewaltDrivetrain

Thanks, I may have to give it a try then, that rating is not much worse than a feigao!!!

[Oppressor]

Originally Posted by lincpimp

Thanks, I may have to give it a try then, that rating is not much worse than a feigao!!!

Keep in mind though that efficiency will fall faster if they are run at lower voltage.

[lincpimp]

Originally Posted by Oppressor

Keep in mind though that efficiency will fall faster if they are run at lower voltage.

What voltage do they run the motors at? 24v?

[Oppressor]

Originally Posted by lincpimp

What voltage do they run the motors at? 24v?

I believe that it's the official specs they have on that website, which mean 18v. It should run best at 5-6s.

Reading back i noted that i was wrong. I originally though that you wanted to run it on 4s. That said if i was you i would use the mamba max on 4s and run 14.4v dewalt instead of the 18v. They are 820 sized too i believe(only .2oz of difference so they should be).

They are cheaper to start with too.
http://www.robotcombat.com/products/BP396505-21.html

Of course ohm law is ohm law and they should be a bit less efficient but it shouldn't more than 1 or 2% of difference.