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Main
Date: 06 Apr 2007 16:47:31
From:
Subject: Extending the range of an electric bike...
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Hi,
In the last few days,
I've bought a 22 inch electric bike 2nd hand for =A3120.
It's been pretty impressive so far imho.
Problem is,
as people probably already know, is the battery...
At the moment,
it does 12 miles at 17 mph quite comfortably with no input from the
rider.
(36v 12 amp lead acid battery)
Just curious to what you think of this idea of extending the range.
A leisure battery from a scrap yard 12v 110 amp - =A330
A fast charger 22amp from Argos - =A340
A 12v to 36 dc to dc convertor - =A370
A current limiting diode.
ie 12v at 110amps,
probably equals 36 volt at 30amp =3D 2 times as far =3D 25 miles,
(taking into account the extra weight and the loss of electric
convertion)
but I reckon it should be good for an approx range of 30 miles of
effortless riding.
Any comments? Ideas?
Thanks,
Dave
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Date: 23 Apr 2007 04:27:55
From: Reid Welch
Subject: Re: Extending the range of an electric bike...
|
On Apr 22, 9:58 pm, "nash" <zwepytzkehil...@jetable.net > wrote:
> "Reid Welch" <net...@netscape.com> wrote in message
>
> news:1177287717.159530.226180@n59g2000hsh.googlegroups.com...
>
> >I forgot to link to the e-v bike friendly forum:
>
> >http://endless-sphere.com/forums/index.php
>
> > and please pardon my rambles and typos?
>
> > Thanks,
> > r.
>
> your image did not show much except a shadow?
Yes, true, Mystery Theater, heh. In reality, the darned thing is
apart for a repaint job;
I was also lucky enough to find a custom frame builder who graciously
gave his time and expertise to true the cheap chinese bike's poorly
aligned frame.
See this thread to meet a good craftsman:
http://endless-sphere.com/forums/viewtopic.php?t=717&start=30
Here's the bike as it was in early January, still with its 24V lead
battery pack.
http://img133.imageshack.us/img133/8171/screenshot407eu5rx8.jpg
An EV Tech 36V/15Ah lithium battery pack is on its way here at this
time.
It will replace a previously-tried pack from another company. Did not
work out.
The EV Tech pack will rule--its good!
The bike, in prep for repaint, will soon be bright yellow (safety
color) with black Freddy ATB fenders.
Should have the bike back together and running in a couple of weeks,
adding some things and removing others.
The tires are those 2.5" wide Big Hanks from Bontrager.
They plump the ride without slowing it down much.
___________
editorializing again:
e-assist makes up for so many sins of excess weight and vertical
posture.
Note that on this bike as it is in the photo, with reversed stem and
long-reach bars,
one can sit fairly well back, full upright, and pull on the bars for
power.
wishing for some semblance of "crank forward" stance, the Thud Buster
is intentionally laid half-back.
The ride is comfortable and responsive handling.
The bike's massive frame and primitive but sturdy springer fork seem
indestructable;
I jump off concrete curbings at speed and leave the roadway for turf
runs whenever fun presents offers.
Thanks for understanding the potentials for new kinds of biking, where
you work as much or as little as you feel like doing--your ride, your
design tweaks, your expression of individuality. And it helps keep
one more car off the road.
good!
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Date: 22 Apr 2007 17:21:57
From: Reid Welch
Subject: Re: Extending the range of an electric bike...
|
I forgot to link to the e-v bike friendly forum:
http://endless-sphere.com/forums/index.php
and please pardon my rambles and typos?
Thanks,
r.
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Date: 23 Apr 2007 01:58:07
From: nash
Subject: Re: Extending the range of an electric bike...
|
"Reid Welch" <netsky@netscape.com > wrote in message
news:1177287717.159530.226180@n59g2000hsh.googlegroups.com...
>I forgot to link to the e-v bike friendly forum:
>
> http://endless-sphere.com/forums/index.php
>
>
> and please pardon my rambles and typos?
>
> Thanks,
> r.
your image did not show much except a shadow?
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Date: 22 Apr 2007 17:19:42
From: Reid Welch
Subject: Re: Extending the range of an electric bike...
|
For everyon curious enough to see what's going on in the e-biking
community,
here's a good and social forum where experience hangs out with
newbies.
I've been into the e-bike hobby for less than a year.
I'm having a ball with my first bike: it cost less than $400 (Currie
retro cruiser).
Simple mods, Big Hank fat slicks, it pedals freely--I've got a good,
bombproof singlespeed bike in this package,
and because I don't deal with hills in Miami, It's fun to ride
manually.
The lead pack is gone. The new lithium pack is coming. The bike will
go on its own at 26mph,
no laws being broken at all.
As assist or as full power, your choice: the e-bike is simply more fun
because:
-it moves you when you have a headwind to fight
-it saves you from sweating when you're biking somewhere where you
need to arrive clean and fresh,
like work? The store?
-A comfort bike can go as fast as a roadie bike, without physiological
deformations of the body.
Hey, I'm middle aged and wreck my neck if I get on a road bike.
So I sit on this, fully upright, way back, pulling on the bars and
letting the motor pay for my comfort and view of the road and the
world dazzling by. I smile and laugh while at top speed, pedaling 92
gear inches.
We never see purists having that sort of fun---or rather, their fun,
your fun is equal, but endorphin-like,
and so, the pleasures are two not-mutually-exclusive things.
Point: with an assist you can have both freedom to relax and freedom
to exert, and have the exercise high as you like.
It's all good, really. I don't understand why pure bikers feel e-
biking is a cheat, artificial.
There's nothing non-artificial about a bike in the first place---and
when I see the lengths serious bikers may go,
the expense and the lycra....well, it becomes sort of a pot calling
kettle joke to criticise either camp.
E-biking will grow slowly until the bikes' batteries mature. In a few
years the field will explode with fat old folks
passing roadies. Some will smile, though some may castigate, "you're
a cheater"; which is rather a notion for anyone riding a machine.
cheers,
Reid
my cheap and bulletproof e-bike
http://img176.imageshack.us/img176/130/screenshot039bc0.jpg
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| | |
Date: 22 Apr 2007 16:56:00
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"Reid Welch" <netsky@netscape.com > wrote in message
news:1177287582.376086.48260@y5g2000hsa.googlegroups.com...
> For everyon curious enough to see what's going on in the e-biking
> community,
> here's a good and social forum where experience hangs out with
> newbies.
>
> I've been into the e-bike hobby for less than a year.
> I'm having a ball with my first bike: it cost less than $400 (Currie
> retro cruiser).
>
> Simple mods, Big Hank fat slicks, it pedals freely--I've got a good,
> bombproof singlespeed bike in this package,
> and because I don't deal with hills in Miami, It's fun to ride
> manually.
>
> The lead pack is gone. The new lithium pack is coming. The bike will
> go on its own at 26mph,
> no laws being broken at all.
>
> As assist or as full power, your choice: the e-bike is simply more fun
> because:
> -it moves you when you have a headwind to fight
> -it saves you from sweating when you're biking somewhere where you
> need to arrive clean and fresh,
> like work? The store?
> -A comfort bike can go as fast as a roadie bike, without physiological
> deformations of the body.
>
> Hey, I'm middle aged and wreck my neck if I get on a road bike.
> So I sit on this, fully upright, way back, pulling on the bars and
> letting the motor pay for my comfort and view of the road and the
> world dazzling by. I smile and laugh while at top speed, pedaling 92
> gear inches.
>
> We never see purists having that sort of fun---or rather, their fun,
> your fun is equal, but endorphin-like,
> and so, the pleasures are two not-mutually-exclusive things.
>
> Point: with an assist you can have both freedom to relax and freedom
> to exert, and have the exercise high as you like.
>
> It's all good, really. I don't understand why pure bikers feel e-
> biking is a cheat, artificial.
> There's nothing non-artificial about a bike in the first place---and
> when I see the lengths serious bikers may go,
> the expense and the lycra....well, it becomes sort of a pot calling
> kettle joke to criticise either camp.
>
> E-biking will grow slowly until the bikes' batteries mature. In a few
> years the field will explode with fat old folks
> passing roadies. Some will smile, though some may castigate, "you're
> a cheater"; which is rather a notion for anyone riding a machine.
I guess we need to be both places. But we all have to remember that we have
to "Share" the biways and what benefits one will benefit the other.
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Date: 18 Apr 2007 18:53:35
From: Tom Keats
Subject: Re: Extending the range of an electric bike...
|
In article <46263793$1@news.i70west.com >,
"Daryl Hunt" <dhunt@celticommnospam.com > writes:
>> Aw, I'm just pullin' yer leg a little. And partly, I'm just
>> responding to that human instinct, when confronted with
>> a monster, to kill it :-) But I don't really have anything
>> against eBikes. If they keep your hypothetical delicate
>> flower of masculinity from driving some oil-smoke-spewing
>> old panel van or some such thing, I guess that's a good thing.
>
> I don't know if it is or not.
I'd rather ride behind an eBike than an oil-smoke-spewing
old panel van.
> I just know I ride one and also a
> conventional bike as well. Depends on how I feel the first thing in the
> morning. Riding a conventional bike a couple of miles to work without
> coffee doesn't really start the day out good.
There's an idea: eBikes that can brew a pot of coffee on the fly.
cheers,
Tom
--
Nothing is safe from me.
Above address is just a spam midden.
I'm really at: tkeats curlicue vcn dot bc dot ca
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Date: 18 Apr 2007 12:38:04
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"Tom Keats" <tkeats2005@hotmail.com > wrote in message
news:v2i60f.hc.ln@bud.garden.local...
> In article <46263793$1@news.i70west.com>,
> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
>
> >> Aw, I'm just pullin' yer leg a little. And partly, I'm just
> >> responding to that human instinct, when confronted with
> >> a monster, to kill it :-) But I don't really have anything
> >> against eBikes. If they keep your hypothetical delicate
> >> flower of masculinity from driving some oil-smoke-spewing
> >> old panel van or some such thing, I guess that's a good thing.
> >
> > I don't know if it is or not.
>
> I'd rather ride behind an eBike than an oil-smoke-spewing
> old panel van.
You just wait until you ride behind me after I have had a few bowls of my
special Pinto Bean and Ham. (g)
>
> > I just know I ride one and also a
> > conventional bike as well. Depends on how I feel the first thing in the
> > morning. Riding a conventional bike a couple of miles to work without
> > coffee doesn't really start the day out good.
>
> There's an idea: eBikes that can brew a pot of coffee on the fly.
Hmm, I never tried coffee made on a fly. Bet the cups and pot are mighty
small, ain't they.
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Date: 19 Apr 2007 08:07:58
From: Curtis L. Russell
Subject: Re: Extending the range of an electric bike...
|
On Wed, 18 Apr 2007 18:53:35 -0700, tkeats2005@hotmail.com (Tom Keats)
wrote:
>
>There's an idea: eBikes that can brew a pot of coffee on the fly.
Yeah, but a lot of bike shorts don't have flies.
Curtis L. Russell
Odenton, MD (USA)
Just someone on two wheels...
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Date: 17 Apr 2007 23:22:25
From: Tom Keats
Subject: Re: Extending the range of an electric bike...
|
In article <46255032$1@news.i70west.com >,
"Daryl Hunt" <dhunt@celticommnospam.com > writes:
>
> "Tom Keats" <tkeats2005@hotmail.com> wrote in message
> news:kao10f.d721.ln@bud.garden.local...
>> In article <4623e5d2$1@news.i70west.com>,
>> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
>> >
>> > "Tom Keats" <tkeats2005@hotmail.com> wrote in message
>> > news:bneuve.unv.ln@bud.garden.local...
>> >> In article <4622a222$1@news.i70west.com>,
>> >> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
>> >> >
>> >> > Guess what, with this configuration, he won't have to peddle a lick
> and
>> > will
>> >> > be hitting over 23 mph average with almost a 75 mile range. Add a
> 4th
>> > pack
>> >> > and he should hit almost 100 miles. Now, unless your name is Lance
>> >> > Armstrong and you are at the peak of your carreer, the sickly person
>> > that
>> >> > can't even pick up his own bike is going to smoke you over a very,
> very
>> > long
>> >> > distance.
>> >>
>> >> Maybe, but Bob will be healthier after the finish line.
>> >> And better able to deal with flats 'n such en route.
>> >
>> > And maybe he will be so exhausted at the conclusion he won't complain
> loudly
>> > about the Low Speed Electric Bike being included.
>>
>> If Bob agreed with his free will to participate in
>> such a contest, I doubt he'd be inclined to beef
>> about it later.
>
> It's usually not up to one single person on who participates. And Bob is
> free to agree or disagree.
I'm just sayin' I think Bob is sportsman enough to
win or lose graciously.
>> > And, chances are, the skinny dude on the LSEB might have gotten some
>> > exercise along the way as well.
>>
>> Pushing a "start" button is not exercise.
>>
>> And pitting a bicyclist against a two-wheeled ersatz car
>> is hardly a contest.
>
> Actually, if one stays within the Public Law that makes a "Low Speed
> Electric Bicycle" a bicycle then there will be some pedaling involved
> somewhere along the way.
So much for: " Guess what, with this configuration, he won't
have to peddle a lick."
> Now, if Lockheed/Marietta were to make one it
> would still require approval from the FAA and NASA to drive.
Aw, I'm just pullin' yer leg a little. And partly, I'm just
responding to that human instinct, when confronted with
a monster, to kill it :-) But I don't really have anything
against eBikes. If they keep your hypothetical delicate
flower of masculinity from driving some oil-smoke-spewing
old panel van or some such thing, I guess that's a good thing.
cheers, & King Kong died for our sins,
Tom
--
Nothing is safe from me.
Above address is just a spam midden.
I'm really at: tkeats curlicue vcn dot bc dot ca
|
| | |
Date: 17 Apr 2007 20:18:43
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"Tom Keats" <tkeats2005@hotmail.com > wrote in message
news:1fd40f.rf41.ln@bud.garden.local...
> In article <46255032$1@news.i70west.com>,
> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >
> > "Tom Keats" <tkeats2005@hotmail.com> wrote in message
> > news:kao10f.d721.ln@bud.garden.local...
> >> In article <4623e5d2$1@news.i70west.com>,
> >> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >> >
> >> > "Tom Keats" <tkeats2005@hotmail.com> wrote in message
> >> > news:bneuve.unv.ln@bud.garden.local...
> >> >> In article <4622a222$1@news.i70west.com>,
> >> >> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >> >> >
> >> >> > Guess what, with this configuration, he won't have to peddle a
lick
> > and
> >> > will
> >> >> > be hitting over 23 mph average with almost a 75 mile range. Add a
> > 4th
> >> > pack
> >> >> > and he should hit almost 100 miles. Now, unless your name is
Lance
> >> >> > Armstrong and you are at the peak of your carreer, the sickly
person
> >> > that
> >> >> > can't even pick up his own bike is going to smoke you over a very,
> > very
> >> > long
> >> >> > distance.
> >> >>
> >> >> Maybe, but Bob will be healthier after the finish line.
> >> >> And better able to deal with flats 'n such en route.
> >> >
> >> > And maybe he will be so exhausted at the conclusion he won't complain
> > loudly
> >> > about the Low Speed Electric Bike being included.
> >>
> >> If Bob agreed with his free will to participate in
> >> such a contest, I doubt he'd be inclined to beef
> >> about it later.
> >
> > It's usually not up to one single person on who participates. And Bob
is
> > free to agree or disagree.
>
> I'm just sayin' I think Bob is sportsman enough to
> win or lose graciously.
Actually, he laid out the scale to lose.
>
> >> > And, chances are, the skinny dude on the LSEB might have gotten some
> >> > exercise along the way as well.
> >>
> >> Pushing a "start" button is not exercise.
> >>
> >> And pitting a bicyclist against a two-wheeled ersatz car
> >> is hardly a contest.
> >
> > Actually, if one stays within the Public Law that makes a "Low Speed
> > Electric Bicycle" a bicycle then there will be some pedaling involved
> > somewhere along the way.
>
> So much for: " Guess what, with this configuration, he won't
> have to peddle a lick."
At 120 lbs, he won't have to. But he will anyway just out of habit.
Whereas I will have to pedal quite a bit being almost twice his weight.
>
> > Now, if Lockheed/Marietta were to make one it
> > would still require approval from the FAA and NASA to drive.
>
> Aw, I'm just pullin' yer leg a little. And partly, I'm just
> responding to that human instinct, when confronted with
> a monster, to kill it :-) But I don't really have anything
> against eBikes. If they keep your hypothetical delicate
> flower of masculinity from driving some oil-smoke-spewing
> old panel van or some such thing, I guess that's a good thing.
I don't know if it is or not. I just know I ride one and also a
conventional bike as well. Depends on how I feel the first thing in the
morning. Riding a conventional bike a couple of miles to work without
coffee doesn't really start the day out good.
>
>
> cheers, & King Kong died for our sins,
> Tom
>
> --
> Nothing is safe from me.
> Above address is just a spam midden.
> I'm really at: tkeats curlicue vcn dot bc dot ca
|
| |
Date: 16 Apr 2007 23:09:24
From: Tom Keats
Subject: Re: Extending the range of an electric bike...
|
In article <4623e5d2$1@news.i70west.com >,
"Daryl Hunt" <dhunt@celticommnospam.com > writes:
>
> "Tom Keats" <tkeats2005@hotmail.com> wrote in message
> news:bneuve.unv.ln@bud.garden.local...
>> In article <4622a222$1@news.i70west.com>,
>> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
>> >
>> > Guess what, with this configuration, he won't have to peddle a lick and
> will
>> > be hitting over 23 mph average with almost a 75 mile range. Add a 4th
> pack
>> > and he should hit almost 100 miles. Now, unless your name is Lance
>> > Armstrong and you are at the peak of your carreer, the sickly person
> that
>> > can't even pick up his own bike is going to smoke you over a very, very
> long
>> > distance.
>>
>> Maybe, but Bob will be healthier after the finish line.
>> And better able to deal with flats 'n such en route.
>
> And maybe he will be so exhausted at the conclusion he won't complain loudly
> about the Low Speed Electric Bike being included.
If Bob agreed with his free will to participate in
such a contest, I doubt he'd be inclined to beef
about it later.
> And, chances are, the skinny dude on the LSEB might have gotten some
> exercise along the way as well.
Pushing a "start" button is not exercise.
And pitting a bicyclist against a two-wheeled ersatz car
is hardly a contest.
cheers,
Tom
--
Nothing is safe from me.
Above address is just a spam midden.
I'm really at: tkeats curlicue vcn dot bc dot ca
|
| | |
Date: 17 Apr 2007 03:51:32
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"Tom Keats" <tkeats2005@hotmail.com > wrote in message
news:kao10f.d721.ln@bud.garden.local...
> In article <4623e5d2$1@news.i70west.com>,
> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >
> > "Tom Keats" <tkeats2005@hotmail.com> wrote in message
> > news:bneuve.unv.ln@bud.garden.local...
> >> In article <4622a222$1@news.i70west.com>,
> >> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >> >
> >> > Guess what, with this configuration, he won't have to peddle a lick
and
> > will
> >> > be hitting over 23 mph average with almost a 75 mile range. Add a
4th
> > pack
> >> > and he should hit almost 100 miles. Now, unless your name is Lance
> >> > Armstrong and you are at the peak of your carreer, the sickly person
> > that
> >> > can't even pick up his own bike is going to smoke you over a very,
very
> > long
> >> > distance.
> >>
> >> Maybe, but Bob will be healthier after the finish line.
> >> And better able to deal with flats 'n such en route.
> >
> > And maybe he will be so exhausted at the conclusion he won't complain
loudly
> > about the Low Speed Electric Bike being included.
>
> If Bob agreed with his free will to participate in
> such a contest, I doubt he'd be inclined to beef
> about it later.
It's usually not up to one single person on who participates. And Bob is
free to agree or disagree.
>
> > And, chances are, the skinny dude on the LSEB might have gotten some
> > exercise along the way as well.
>
> Pushing a "start" button is not exercise.
>
> And pitting a bicyclist against a two-wheeled ersatz car
> is hardly a contest.
Actually, if one stays within the Public Law that makes a "Low Speed
Electric Bicycle" a bicycle then there will be some pedaling involved
somewhere along the way. Now, if Lockheed/Marietta were to make one it
would still require approval from the FAA and NASA to drive.
|
| |
Date: 15 Apr 2007 21:36:08
From: oilfreeandhappy
Subject: Re: Extending the range of an electric bike...
|
On Apr 15, 3:08 am, "Daryl Hunt" <d...@celticommnospam.com > wrote:
> "oilfreeandhappy" <oil_free_and_ha...@comcast.net> wrote in message
>
> news:1176630866.777967.170180@n76g2000hsh.googlegroups.com...
>
>
>
>
>
> > On Apr 11, 9:40 pm, bob prohaska's usenet account <b...@www.zefox.net>
> > wrote:
> > > dave_mallon...@hotmail.co.uk wrote:
>
> > > > Just curious to what you think of this idea of extending the range.
>
> > > > A leisure battery from a scrap yard 12v 110 amp - ?30
> > > > A fast charger 22amp from Argos - ?40
> > > > A 12v to 36 dc to dc convertor - ?70
> > > > A current limiting diode.
>
> > > > ie 12v at 110amps,
> > > > probably equals 36 volt at 30amp = 2 times as far = 25 miles,
> > > > (taking into account the extra weight and the loss of electric
> > > > convertion)
>
> > > Sorry, but I don't understand; volts times amps is power, not
> > > energy or range. Do you mean amp hours?
>
> > > > Any comments? Ideas?
>
> > > Check the weights of the batteries and compare them to the weight
> > > of a small portable generator. I know, it's cheating, but nobody
> > > will notice if you choose one of the new super-quiet four stroke
> > > units. You can probably get 36 volts directly if you're willing
> > > to modify the generator.
>
> > > bob prohaska
>
> > I often wondered why most electrically powered hubs that I've seen
> > have lead-acid batteries. I just assumed it was the cost. Are the
> > Lithium-Ion batteries interchangeable with the current motor, etc? I
> > imagine you'd need a different charger for sure.
>
> 80 bucks per 36v pack for the SLA while the LiON 36V pack hits close to 400.- Hide quoted text -
>
> - Show quoted text -
Ouch! That explains why I see so many lead-acid systems.
----
Jim Gagnepain
www.oilfreeandhappy.com
|
| |
Date: 15 Apr 2007 17:07:07
From: Tom Keats
Subject: Re: Extending the range of an electric bike...
|
In article <4622a222$1@news.i70west.com >,
"Daryl Hunt" <dhunt@celticommnospam.com > writes:
>
> Guess what, with this configuration, he won't have to peddle a lick and will
> be hitting over 23 mph average with almost a 75 mile range. Add a 4th pack
> and he should hit almost 100 miles. Now, unless your name is Lance
> Armstrong and you are at the peak of your carreer, the sickly person that
> can't even pick up his own bike is going to smoke you over a very, very long
> distance.
Maybe, but Bob will be healthier after the finish line.
And better able to deal with flats 'n such en route.
Like the old song says:
"In the year 5555
Your arms hangin' limp at your sides
Your legs got nothin' to do
Some machine's doin' that for you"
cheers,
Tom
--
Nothing is safe from me.
Above address is just a spam midden.
I'm really at: tkeats curlicue vcn dot bc dot ca
|
| | |
Date: 16 Apr 2007 02:05:23
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"Tom Keats" <tkeats2005@hotmail.com > wrote in message
news:bneuve.unv.ln@bud.garden.local...
> In article <4622a222$1@news.i70west.com>,
> "Daryl Hunt" <dhunt@celticommnospam.com> writes:
> >
> > Guess what, with this configuration, he won't have to peddle a lick and
will
> > be hitting over 23 mph average with almost a 75 mile range. Add a 4th
pack
> > and he should hit almost 100 miles. Now, unless your name is Lance
> > Armstrong and you are at the peak of your carreer, the sickly person
that
> > can't even pick up his own bike is going to smoke you over a very, very
long
> > distance.
>
> Maybe, but Bob will be healthier after the finish line.
> And better able to deal with flats 'n such en route.
And maybe he will be so exhausted at the conclusion he won't complain loudly
about the Low Speed Electric Bike being included.
And, chances are, the skinny dude on the LSEB might have gotten some
exercise along the way as well.
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Date: 15 Apr 2007 02:54:26
From: oilfreeandhappy
Subject: Re: Extending the range of an electric bike...
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On Apr 11, 9:40 pm, bob prohaska's usenet account <b...@www.zefox.net >
wrote:
> dave_mallon...@hotmail.co.uk wrote:
>
> > Just curious to what you think of this idea of extending the range.
>
> > A leisure battery from a scrap yard 12v 110 amp - ?30
> > A fast charger 22amp from Argos - ?40
> > A 12v to 36 dc to dc convertor - ?70
> > A current limiting diode.
>
> > ie 12v at 110amps,
> > probably equals 36 volt at 30amp = 2 times as far = 25 miles,
> > (taking into account the extra weight and the loss of electric
> > convertion)
>
> Sorry, but I don't understand; volts times amps is power, not
> energy or range. Do you mean amp hours?
>
> > Any comments? Ideas?
>
> Check the weights of the batteries and compare them to the weight
> of a small portable generator. I know, it's cheating, but nobody
> will notice if you choose one of the new super-quiet four stroke
> units. You can probably get 36 volts directly if you're willing
> to modify the generator.
>
> bob prohaska
I often wondered why most electrically powered hubs that I've seen
have lead-acid batteries. I just assumed it was the cost. Are the
Lithium-Ion batteries interchangeable with the current motor, etc? I
imagine you'd need a different charger for sure.
-----
Jim Gagnepain
www.oilfreeandhappy.com
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Date: 15 Apr 2007 03:08:02
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
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"oilfreeandhappy" <oil_free_and_happy@comcast.net > wrote in message
news:1176630866.777967.170180@n76g2000hsh.googlegroups.com...
> On Apr 11, 9:40 pm, bob prohaska's usenet account <b...@www.zefox.net>
> wrote:
> > dave_mallon...@hotmail.co.uk wrote:
> >
> > > Just curious to what you think of this idea of extending the range.
> >
> > > A leisure battery from a scrap yard 12v 110 amp - ?30
> > > A fast charger 22amp from Argos - ?40
> > > A 12v to 36 dc to dc convertor - ?70
> > > A current limiting diode.
> >
> > > ie 12v at 110amps,
> > > probably equals 36 volt at 30amp = 2 times as far = 25 miles,
> > > (taking into account the extra weight and the loss of electric
> > > convertion)
> >
> > Sorry, but I don't understand; volts times amps is power, not
> > energy or range. Do you mean amp hours?
> >
> > > Any comments? Ideas?
> >
> > Check the weights of the batteries and compare them to the weight
> > of a small portable generator. I know, it's cheating, but nobody
> > will notice if you choose one of the new super-quiet four stroke
> > units. You can probably get 36 volts directly if you're willing
> > to modify the generator.
> >
> > bob prohaska
>
> I often wondered why most electrically powered hubs that I've seen
> have lead-acid batteries. I just assumed it was the cost. Are the
> Lithium-Ion batteries interchangeable with the current motor, etc? I
> imagine you'd need a different charger for sure.
80 bucks per 36v pack for the SLA while the LiON 36V pack hits close to 400.
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Date: 14 Apr 2007 21:19:23
From: Bob
Subject: Re: Extending the range of an electric bike...
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On Apr 11, 12:33 am, "Daryl Hunt" <d...@celticommnospam.com > wrote:
> "dgk" <d...@somewhere.com> wrote in message
>
> news:qirp131gp8o6fvvv4en845cdcvkvgi74uk@4ax.com...
>
> > On 6 Apr 2007 16:47:31 -0700, dave_mallon...@hotmail.co.uk wrote:
>
> > >Hi,
>
> > >In the last few days,
> > >I've bought a 22 inch electric bike 2nd hand for =A3120.
>
> > >It's been pretty impressive so far imho.
>
> > >Problem is,
> > >as people probably already know, is the battery...
>
> > ...
>
> > I thought that much of the purpose of riding a bike WAS the effort.
>
> LOL, I guess you purests had just as well accept that you will have to sh=
are
> the biways.
>
We won't be sharing very far, not with a mere 12 mile range and not
for very long at just 17mph either. ;-)
Regards,
Bob Hunt
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Date: 15 Apr 2007 03:04:22
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
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"Bob" <hunrobe@aol.com > wrote in message
news:1176610763.697232.265550@o5g2000hsb.googlegroups.com...
On Apr 11, 12:33 am, "Daryl Hunt" <d...@celticommnospam.com > wrote:
> "dgk" <d...@somewhere.com> wrote in message
>
> > I thought that much of the purpose of riding a bike WAS the effort.
>
> LOL, I guess you purests had just as well accept that you will have to
share
> the biways.
>
>We won't be sharing very far, not with a mere 12 mile range and not
>for very long at just 17mph either. ;-)
>Regards,
>Bob Hunt
Ah, but my new project is a 50 mile Low Speed Electric Bike that can go at
least 20 mph. (of course, less than 20 is the claimed speed). It will go
something like this.
We find a sickly underweight person that uses an inhaler. He weighs in at a
whole 120 lbs. He has spindley arms with NO tan at all. He's very, very
pale. We get his two inhalers and some sunblock.
Then we put on 3 LiON 48V packs inside his frame wired in parrellel. Then
we have him race your butt.
Guess what, with this configuration, he won't have to peddle a lick and will
be hitting over 23 mph average with almost a 75 mile range. Add a 4th pack
and he should hit almost 100 miles. Now, unless your name is Lance
Armstrong and you are at the peak of your carreer, the sickly person that
can't even pick up his own bike is going to smoke you over a very, very long
distance.
You will laugh your ass off at him at the beginning but curse him under what
is left of your breath later.
BTW, good last name,
Regards
Daryl Hunt
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Date: 12 Apr 2007 03:40:15
From: bob prohaska's usenet account
Subject: Re: Extending the range of an electric bike...
|
dave_mallon123@hotmail.co.uk wrote:
>
> Just curious to what you think of this idea of extending the range.
>
> A leisure battery from a scrap yard 12v 110 amp - ?30
> A fast charger 22amp from Argos - ?40
> A 12v to 36 dc to dc convertor - ?70
> A current limiting diode.
>
> ie 12v at 110amps,
> probably equals 36 volt at 30amp = 2 times as far = 25 miles,
> (taking into account the extra weight and the loss of electric
> convertion)
Sorry, but I don't understand; volts times amps is power, not
energy or range. Do you mean amp hours?
>
> Any comments? Ideas?
>
Check the weights of the batteries and compare them to the weight
of a small portable generator. I know, it's cheating, but nobody
will notice if you choose one of the new super-quiet four stroke
units. You can probably get 36 volts directly if you're willing
to modify the generator.
bob prohaska
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Date: 11 Apr 2007 21:15:04
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"bob prohaska's usenet account" <bp@www.zefox.net > wrote in message
news:zShTh.7916$u03.659@newssvr21.news.prodigy.net...
> dave_mallon123@hotmail.co.uk wrote:
> >
> > Just curious to what you think of this idea of extending the range.
> >
> > A leisure battery from a scrap yard 12v 110 amp - ?30
> > A fast charger 22amp from Argos - ?40
> > A 12v to 36 dc to dc convertor - ?70
> > A current limiting diode.
> >
> > ie 12v at 110amps,
> > probably equals 36 volt at 30amp = 2 times as far = 25 miles,
> > (taking into account the extra weight and the loss of electric
> > convertion)
> Sorry, but I don't understand; volts times amps is power, not
> energy or range. Do you mean amp hours?
> >
> > Any comments? Ideas?
> >
> Check the weights of the batteries and compare them to the weight
> of a small portable generator. I know, it's cheating, but nobody
> will notice if you choose one of the new super-quiet four stroke
> units. You can probably get 36 volts directly if you're willing
> to modify the generator.
And such a creation would be classed as a Motor Vehicle since it's actually
a Gas/Electric Hybrid. That opens an entirely different can of worms.
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Date: 15 Apr 2007 03:50:01
From: bob prohaska's usenet account
Subject: Re: Extending the range of an electric bike...
|
Daryl Hunt <dhunt@celticommnospam.com > wrote:
>
> And such a creation would be classed as a Motor Vehicle since it's actually
> a Gas/Electric Hybrid. That opens an entirely different can of worms.
>
>
It might, but that is far from certain. Carrying a generator is
not different, for an electric vehicle, from carrying a can of
gas in an ordinary vehicle.
Narrow minded folks might object, but there's no law against
driving down the road with your fuel pump sipping gas from
a can mounted on the back bumper.
8-)
bob prohaska
>
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Date: 15 Apr 2007 03:07:13
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"bob prohaska's usenet account" <bp@www.zefox.net > wrote in message
news:JhhUh.10577$Kd3.1777@newssvr27.news.prodigy.net...
> Daryl Hunt <dhunt@celticommnospam.com> wrote:
> >
> > And such a creation would be classed as a Motor Vehicle since it's
actually
> > a Gas/Electric Hybrid. That opens an entirely different can of worms.
> >
> >
> It might, but that is far from certain. Carrying a generator is
> not different, for an electric vehicle, from carrying a can of
> gas in an ordinary vehicle.
It's all the world of difference. Read up on
http://i70west.com/electricbicycle2/cpsc_16_cfr_part_1512_elec_bike.pdf
>
> Narrow minded folks might object, but there's no law against
> driving down the road with your fuel pump sipping gas from
> a can mounted on the back bumper.
No as long as you meet or exceed the requirements of Motorized Vehicle
under the NHTA regs. The Low Speed Electric Bicycle has to meet or exceed
the laws under the Consumer Protection just like a Bicycle has to.
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Date: 10 Apr 2007 20:01:38
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
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<dave_mallon123@hotmail.co.uk > wrote in message
news:1175903251.894196.246630@w1g2000hsg.googlegroups.com...
Hi,
In the last few days,
I've bought a 22 inch electric bike 2nd hand for £120.
It's been pretty impressive so far imho.
Problem is,
as people probably already know, is the battery...
At the moment,
it does 12 miles at 17 mph quite comfortably with no input from the
rider.
(36v 12 amp lead acid battery)
Just curious to what you think of this idea of extending the range.
A leisure battery from a scrap yard 12v 110 amp - £30
A fast charger 22amp from Argos - £40
A 12v to 36 dc to dc convertor - £70
A current limiting diode.
ie 12v at 110amps,
probably equals 36 volt at 30amp = 2 times as far = 25 miles,
(taking into account the extra weight and the loss of electric
convertion)
but I reckon it should be good for an approx range of 30 miles of
effortless riding.
Any comments? Ideas?
Look into the LiON batteries. They show the most promise. You might have
to solder it yourself. There are two batteries that you may look at. DD
and F cells. These are from 1.3 to 3.6V and from 5 ah to 10 ah. Think of 2
d cells in size and weight. The F cell looks the most promising at
3.6v/10ah per battery. This means that it would take 10 to make a pack.
That would be 2 rows of 5. And, unlike the NiMH battery packs, you can just
have one charger for the whole 36V pack.
The other thing you need to look at is, weight. A 30 ah Lead Acid is Big
and HEAVY. At some point, in the SLA, the weight of the battery will
overpower the extra range you think you should have and you will actually
shorten your range. But, most assuredly, you will overstress your bearings,
races, spokes and tires. Not to mention, making it very, very top heavy and
a bear to peddle when you need to. Not a good idea.
If you want 30ah I would suggest the LiON battery packs. In fact, I would
suggest 3 of the 10 amp made from the F cells. They would be less than half
the weight of a standard 36v SLA 12aH battery pack and you would get your 30
mile or more range.
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Date: 11 Apr 2007 10:22:15
From: dgk
Subject: Re: Extending the range of an electric bike...
|
On 6 Apr 2007 16:47:31 -0700, dave_mallon123@hotmail.co.uk wrote:
>Hi,
>
>In the last few days,
>I've bought a 22 inch electric bike 2nd hand for £120.
>
>It's been pretty impressive so far imho.
>
>Problem is,
>as people probably already know, is the battery...
>
...
I thought that much of the purpose of riding a bike WAS the effort.
Oh, there are some moments while climbing up the 59th street bridge
that I sort of wish I had an electric assist. Many moments in truth,
and some nasty words tossed at the wind.
30 mile range you think? Hmm. My commute is EXACTLY 15 miles each way.
Nah, then I'd have to go to the gym after getting home.
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Date: 10 Apr 2007 23:33:50
From: Daryl Hunt
Subject: Re: Extending the range of an electric bike...
|
"dgk" <dgk@somewhere.com > wrote in message
news:qirp131gp8o6fvvv4en845cdcvkvgi74uk@4ax.com...
> On 6 Apr 2007 16:47:31 -0700, dave_mallon123@hotmail.co.uk wrote:
>
> >Hi,
> >
> >In the last few days,
> >I've bought a 22 inch electric bike 2nd hand for £120.
> >
> >It's been pretty impressive so far imho.
> >
> >Problem is,
> >as people probably already know, is the battery...
> >
> ...
>
> I thought that much of the purpose of riding a bike WAS the effort.
LOL, I guess you purests had just as well accept that you will have to share
the biways.
>
> Oh, there are some moments while climbing up the 59th street bridge
> that I sort of wish I had an electric assist. Many moments in truth,
> and some nasty words tossed at the wind.
>
> 30 mile range you think? Hmm. My commute is EXACTLY 15 miles each way.
> Nah, then I'd have to go to the gym after getting home.
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Date: 11 Apr 2007 00:03:37
From: Tom Keats
Subject: Re: Extending the range of an electric bike...
|
In article <1175903251.894196.246630@w1g2000hsg.googlegroups.com >,
dave_mallon123@hotmail.co.uk writes:
[snip]
> but I reckon it should be good for an approx range of 30 miles of
> effortless riding.
> Any comments? Ideas?
I can do way better than that with me as the motor.
So can you. With you as your own motor.
Anyways, you're on your own.
cheers, & good ride,
Tom
--
Nothing is safe from me.
Above address is just a spam midden.
I'm really at: tkeats curlicue vcn dot bc dot ca
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