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MetalMan · 12:58 AM

I calculated it using 3.2v/cell at 111amps, since there is no way that the cells can put out any higher. So, 3.2v/cell x 111amps x 5cells = 1776watts x 2packs = 3553watts.
I have read that these ARE the same cells as the Polyquest XPs, and that they are better rated as 16C cont. and 22C burst, mainly because of how hot the cells will get. The fact is is that the cells won't put out 111amps without warming up first, and I highly doubt that the motor will pull 111amps except in occasional spikes because the voltage is so high. How many watts is the 2240 rated at anyways?

EDIT:
Just noticed E-Traxxer's post.

64amps cont. is way more than enough. You could probably get away with 30amps cont.! IMO, the cells you choose should be determined by the runtime that you want.
10s Lipo fully charged is 42.0v, but that will definitely drop to under 40v before the motor can reach full throttle. At 40v, that motor would spin at about 42300RPMs, but the only possible way that could happen is if the wheels were off the ground and you accelerate very slowly. Are you sure that the controller you have is the one with the RPM limit?

	(#9)
MetalMan RC-Monster Mod Offline Posts: 5,297 Join Date: Mar 2005 Location: SoCal	12.15.2005, 12:54 AM I calculated it using 3.2v/cell at 111amps, since there is no way that the cells can put out any higher. So, 3.2v/cell x 111amps x 5cells = 1776watts x 2packs = 3553watts. I have read that these ARE the same cells as the Polyquest XPs, and that they are better rated as 16C cont. and 22C burst, mainly because of how hot the cells will get. The fact is is that the cells won't put out 111amps without warming up first, and I highly doubt that the motor will pull 111amps except in occasional spikes because the voltage is so high. How many watts is the 2240 rated at anyways? EDIT: Just noticed E-Traxxer's post. 64amps cont. is way more than enough. You could probably get away with 30amps cont.! IMO, the cells you choose should be determined by the runtime that you want. 10s Lipo fully charged is 42.0v, but that will definitely drop to under 40v before the motor can reach full throttle. At 40v, that motor would spin at about 42300RPMs, but the only possible way that could happen is if the wheels were off the ground and you accelerate very slowly. Are you sure that the controller you have is the one with the RPM limit? SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz Last edited by MetalMan; 12.15.2005 at 12:58 AM.