MXUS 3000 Turbo 3T & 17" Moped Rim $175

Joined
Dec 24, 2015
Messages
66
Location
Western NY
Used MXUS 300 Turbo, 3T winding, in a 17" Holmes MMP rim done by a member here on ES
as part of a group buy we did here on ES for the MXUS with upgraded phase wires and curved magnets etc.
Hub motor worked great but had a battery fire on the bike so the ends of the wires got melted so will need new connector for whatever
your controller is, did do a spin up on the motor afterwards and it did spin up alright so as far as I know its good to go but sold as is.
Asking $175 plus shipping or pickup local.
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Interesting but I'm on the other side of the United States Southern California.
Sorry to hear about your fire I hope most things survived as I've had a garage fire
Can I ask what caused the fire ?
 
If your interested and wanna send me a zip code I can see what shipping would be and we can negotiate? I'm working on listing a bunch of different stuff I had accumulated(controller 18fet, nib batteries, 72v satiator etc.)trying to thin down my many hobbies to what I actually have time to do otherwise I'd try and build it back up but married, home owner, and newborn haven't left time and money for an ebike rn

Cause of the fire was a few things,
1st thing was I was running a lipo battery and had just gotten a cycle satiator 72v and mis-configured it on the first setup for 18650 72v instead of lipo.

So it overcharged which might have been fixed but I only used it once real quick the night I got it and then my brother used the bike several times while I was away thinking I had gotten it all setup, when I was intending to come back to it and play with the satiator at which point hopefully I would have found my mistake.

He noticed the battery getting warm but didn't trouble shoot it and ended up doing several cycles of the battery at which point it burst into flames while in storage, thankfully it was seen and no building damage just melted everything immediately next to the battery.

I bought everything to put it back together but then life kinda went into overdrive and never got back to it.

Regards,
Joe
 
Offtopic, but a point of information that may be useful (now or to future readers):

1st thing was I was running a lipo battery and had just gotten a cycle satiator 72v and mis-configured it on the first setup for 18650 72v instead of lipo.
Assuming you're talking about RC Lipo (like the shrinkwrapped packs) then as long as the cells are the same series number, and the 18650 isn't LiFePO4 or some other different-voltage chemistry, then if you set up the Satiator for 84v (4.2v/cell, typical full charge for 20s 72v), then that should be fine for the Lipo. Charge current for the 72v satiator doesn't go high enough to damage any of the RC Lipo I know of.

Based on other RC Lipo pack failures seen over the years, it's more likely that there was an imbalance in the Lipo packs (or other defect) that over the charge cycles it saw allowed cell(s) to either overcharge, or overdischarge, or both, or that the system on the bike didn't have a way to detect LVC correctly (or at all) for the cells, and they were overdischarged which can cause damage that later when recharged can result in fire.

Could have just been a cell defect in a pack, as it's hard to believe there is much, if any, QC on RC Lipo packs in general based on some of the problems that have been seen with them, and bad cells have definitely been the cause of various problems.
 
Good info, I'd have to look back to be sure but I believe the cause was it was an 18s lipo pack(3 6s packs in series) but the charger was set for a 20s pack. Sorry for not including that info/mis info and didnt mean to get off topic so please feel free to remove if necessary.
 
Ah, yeah, that would overcharge them by 2 x 4.2v / 18 = 0.47v each, so they'd end up (assuming they were matched and balanced, which probably isn't a fair assumption ;) ) at 4.67v each, which is a significant overcharge.

FWIW, an 18s pack isn't really a 72v pack, but rather 18 * 3.6 or 3.7v, which is about 65-67v. (a pack is typically named for it's average voltage, and to get 72v as that it'd need to be 20s assuming 3.6v/cell (74v for 3.7v/cell); depends on the chemistry. )

(even offtopics can be educational and provide useful information to readers, so nothing usually wrong with them, unless they get into flame wars ;) Some threads are more OT than on...)
 
Throw me a good bundle deal on the mxus 18fet and satiator and maybe i will take the drive over to you from MA. Let me know
 
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