Recent content by mhenstell

Yeah, I looked around before I posted but came up empty on those cells. However, I just noticed that batteryspace.com has similar cells, and they seem like a little less of a wildcard perhaps. https://endless-sphere.com/forums/viewtopic.php?f=14&t=61810&hilit=batteryspace

Got it. The 3C curve actually doesn't look too bad for my use case. I guess my only question is why are they significantly cheaper per Ah than, say, the Winstons, or especially the CALBs, and what am I trading off? I can live with no support and somewhat reduced cycles.

Hi all, Does anyone have any experience with these no-brand 20Ah LiFePO4 cells, or with ElectricCarPartsCompany in general? I'm wondering if these specs are in the right ballpark. I'd be hoping for at least 50% rated capacity at 60A (3C) and I'm a little confused by the difference between...

Hi all, I'm building a small art car for Burning Man (so dusty, hot conditions). I'm trying to decide between one of the Motenergy open PMAC motors (such as http://www.electricmotorsport.com/ev-parts/motors/brushless-motors/pmac-ss-me0201014201-pmac-motor-24-72v-6-hp-cont-19-hp-pk.html) or one...

The two rear wheels are very close together. I don't have my axle yet so I haven't been able to test it, but my hope is that it works more or less like a tricycle, with a minimum of skid steering. It's also meant for dusty conditions and very slow speeds, so I'm hoping this won't be much of a...

Ah, ok. I took a look at your trike, very nice. So perhaps two hub motors with small sprockets grafted on would do the trick. Interesting. I see a few options for 4-pole geared powerchair motors, as well as those direct-drive gearless brushless motors like you used on CrazyBike2 (those look...

spinningmagnets - Thanks for the links, I'll check those out, it looks like there's some good information in there. Guilty. That seems to be the consensus of the burners I've talked to. Even if it lasts the week, I don't want to completely trash it. It was mentioned elsewhere that it would...

Thanks for that. I have a lot to learn about motors obviously, I just wanted to know if I was on the right track and in the right order of magnitude, or if I was going to throw $400 down the drain on a PMDC motor that I'll just end up burning out the first time I use it. Ideally I would be able...

Ah, so PMDC motors aren't ideal for sort of thing, presumably because they get hotter than shunt or series wound motors? I agree that a golf cart motor would probably be more ideal, however it looks like it would take quite a bit of fabrication to get one going...

Hi all, Sorry if this has been asked too many times, I'm still researching this. I'm building a small, custom electric vehicle. It will weigh something on the order of 1100-1500 lbs, including the weight of the frame and four people. The motor I'm looking at is a Motenergy ME0909...