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Re: (ET) Lithium batteries as replacement for AGM
Barry,
I imagine many of us would love to hear LOTS more about this.
Thon
On Feb 19, 2019, at 2:12 PM, <barry fredericktown com> wrote:
> Ken,
>
> Please excuse me if you are not interested in my comments.
> Instead of replacing the AGM batteries you might want to consider
> converting
> your ox to lithium
> I have installed Nissan leaf batteries in my Hustler Zero turn mower and
> my
> go kart conversion. I have CALB 100ah in my New Idea garden tractor.
> These lithium batteries have worked flawlessly, except the one time I
> discharged my New Idea to far and lost a cell.
> I have included a link to my EV collection.
> If you are interested and want more information please let know.
>
> Barry Elkin
> Littleton, NC
> http://www.oilfreemiles.com/Master%20Inages/Our%20Vehicles%20(1).jpg
>
>
> -----Original Message-----
> From: elec-trak-request cosmos phy tufts edu
> <elec-trak-request cosmos phy tufts edu>
> Sent: Tuesday, February 19, 2019 12:00 PM
> To: elec-trak cosmos phy tufts edu
> Subject: Elec-trak Digest, Vol 17, Issue 15
>
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> Today's Topics:
>
> 1. Electric Ox snowblower working again (Ken Olum)
> 2. Bright Way vs. Universal Power Group (Ken Olum)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 18 Feb 2019 18:11:59 -0500
> From: Ken Olum <kdo cosmos phy tufts edu>
> To: elec-trak cosmos phy tufts edu
> Subject: (ET) Electric Ox snowblower working again
> Message-ID: <q52zhqsu1xc fsf cosmos phy tufts edu>
> Content-Type: text/plain
>
> Thanks very much to everyone who offered help and ideas last spring about
> getting my snowblower working again. Here's what happened:
>
> The problem was that the motor shaft was badly worn at the front
> bearing. I
> took it to my local welder who offered to build up the shaft, and then I
> could take it to the machine shop to have it ground down to the right
> diameter again. I went ahead with this plan, but when I got to the
> machine
> shop, it turned out the shaft was bent, and there was no way to fix it.
> I
> don't know if this happened during welding or before. This motor had a
> very
> hard life.
>
> So then I bought a Motenergy ME1007 through EVDrives. This motor is
> wider
> and not as long as one I had before, and has mounting holes in different
> places. I had the machine shop redo the mounting system and also remount
> the motor that rotates the auger to get it out of the way of the new
> drive
> motor.
>
> I called Bercomac, the maker of the snowblower before conversion. They
> told
> me the first driven shaft in the snowblower should rotate 3600 rpm, which
> was the same as the new motor, so I coupled them 1:1 with a belt.
> I don't know the rpm of the old motor, but it had about 2:1 reduction.
> The result of this is that the snowblower runs much faster, and throws
> the
> snow much further. Naturally it also uses more energy to throw the same
> amount of snow. On the other hand, in cases where I only have to throw
> the
> snow once now, when before I had to throw it twice, it uses less energy.
>
> So far I'm pretty happy, but we've only had a couple of fairly minor
> snowstorms. It's possible that in the end I'll want to reduce the speed
> somewhat.
>
> I finally managed to get in touch with Electric Tractor, Inc., who made
> the
> Ox. (Well, I think this is really the successor company that bought the
> first one of bankruptcy. They are trying to get back in business and
> claim
> to have a prototype of their new product. I'll post if there's
> progress.)
> They had not kept the information about the original motor, but they did
> confirm that the snowblower I have is the prototype, and no others were
> ever
> built.
>
> Ken
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 18 Feb 2019 18:25:02 -0500
> From: Ken Olum <kdo cosmos phy tufts edu>
> To: elec-trak cosmos phy tufts edu, ev lists evdl org
> Subject: (ET) Bright Way vs. Universal Power Group
> Message-ID: <q52tvh0u1bl fsf cosmos phy tufts edu>
> Content-Type: text/plain
>
> Hi, all. I'm trying to replace the UB121350 AGM batteries that I have
> in my
> Electric Ox. I ordered new ones from Wholesale Batteries Direct, but
> they
> are out and Universal Power Group is out at the warehouse also.
> They recommended that I get the Bright Way Group BW EV12-155A instead,
> for a
> few dollars more. Anyone have any experience with Bright Way? I have
> had
> good experience with Universal Power, and know nothing about Bright Way.
> The specs on their battery claim 1000 cycles to 50% DOD, which is pretty
> impressive for AGM, though that is not so important in a lawn tractor
> that
> you don't use every day. They claim 10 year calendar life, also quite
> impressive and more relevant to me.
>
> Ken
>
>
>
> ------------------------------
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> End of Elec-trak Digest, Vol 17, Issue 15
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