Building an EV motorcycle. Batteries: Need opinions. - Page 3 - Fuel Economy, Hypermiling, EcoModding News and Forum

oil pan 4 · 06-28-2013, 01:06 PM

Endless-sphere is charging $380 for an 8cell pack.
I built my 8 cell pack for $250.

P-hack · 06-28-2013, 01:14 PM

Quote:

Originally Posted by TurnNBurn

The mars ME0913 is a DC permanent magnet motor. Where did you get that it was AC?

ME0913 PMAC Motor
3 phase motor with hall sensors.... good catch Daox.

TurnNBurn · 06-28-2013, 01:28 PM

Quote:

Originally Posted by P-hack

ME0913 PMAC Motor
3 phase motor with hall sensors.... good catch Daox.

So because it's a 3 phase motor it's not going to work at all? Shouldn't a DC motor work with a DC controller?

Daox · 06-28-2013, 02:11 PM

Its not a DC motor, its an AC motor. Permanent magnet just means it uses magnets instead of electro-magnets. Permanent magent motors can be DC or AC. You're going to need to go with a DC motor, or get a controller that is compatable with that motor.

TurnNBurn · 06-28-2013, 02:16 PM

Quote:

Originally Posted by Daox

Its not a DC motor, its an AC motor. Permanent magnet just means it uses magnets instead of electro-magnets. Permanent magent motors can be DC or AC. You're going to need to go with a DC motor, or get a controller that is compatable with that motor.

Fudge. I already have both sitting in the garage. I was told by numerous people they'd be a good pair. This really sucks. Now I have to get rid of either the controller or motor.

With that alltrax 7245, which 73v motor would you guys recommend? Maybe I can trade it or return it to the place I got it from.

P-hack · 06-28-2013, 02:32 PM

DC motor and controller will be more affordable, I would try to ebay the PMAC motor (or see if your supplier can exchange it).

TurnNBurn · 06-28-2013, 02:33 PM

Quote:

Originally Posted by P-hack

DC motor and controller will be more affordable, I would try to ebay the PMAC motor (or see if your supplier can exchange it).

Which DC motor would you recommend in the 72v range? I'm going to see if I can exchange it. Even though I got it about 6 months ago :-/

P-hack · 06-28-2013, 02:50 PM

I see the ME1003 bundled with your controller, they are like $700 shipped on ebay, reasonably similiar power ratings.

A suitable kelly controller for your PMAC is about $1000.

I see your PMAC motor sold (new) for like $820 on fleabay.

P-hack · 06-28-2013, 03:03 PM

oops, I lied, this *should* work with your PMAC and is $700, but you should be doing more homework and googling for opinions on part nubmbers and motor/controller (and battery) combinations. The cost between DC and AC might not be as bad as I thought these days.

High Efficiency Brushless Motor Controller

TurnNBurn · 06-28-2013, 03:15 PM

So the me0913 will work? That's why I'm so confused. I've done research and gotten lots of opinions and everyone says it'll work.

Specs say it works on DC