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capedavis(at)yahoo.com
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 Posted: Mon Feb 20, 2012 3:03 pm Post subject: NI-CAD |
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Kolbers , I forgot to ask in my last post asking about the 377s , Do the NI-CAD batteries the light ones, have enough power to start a ROTAX 377- 447 ? Has anyone tried one? Thanks Chris
Chris Davis
KXP 503 492 hrs
Glider Pilot
Disabled from crash building Firefly
[quote][b]
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herbgh(at)nctc.com
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| Posted: Mon Feb 20, 2012 3:23 pm Post subject: NI-CAD |
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Chris
A fairly small motor cycle battery works.. ES14L-A2 from
Wally ... My buddy who died last May used it to start his 447...
By the way...I may sell his 447... New From SMLA in 2010... Has
13 hours...I have the Bill of Sale from them..
After market GPL electric start...Heads torqued after 1 hour...
One of the last "new" 447's... from what I hear...
$4499 .00 when he bought it in June of 2010... B Box 2.58 to 1... Herb
At 05:01 PM 2/20/2012, you wrote:
| Quote: | Kolbers , I forgot to ask in my last post asking about the 377s ,
Do the NI-CAD batteries the light ones, have enough power to start a
ROTAX 377- 447 ? Has anyone tried one? Thanks Chris
Chris Davis
KXP 503 492 hrs
Glider Pilot
Disabled from crash building Firefly
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ceengland(at)bellsouth.ne
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| Posted: Mon Feb 20, 2012 4:29 pm Post subject: NI-CAD |
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On 02/20/2012 05:01 PM, chris davis wrote: | Quote: | Kolbers , I forgot to ask in my last post asking about the 377s , Do the NI-CAD batteries the light ones, have enough power to start a ROTAX 377- 447 ? Has anyone tried one? Thanks Chris
Chris Davis
KXP 503 492 hrs
Glider Pilot
Disabled from crash building Firefly
|
Hi Chris,
I think you're looking for 'SLA' (sealed lead acid) or 'VR-RG' (valve regulated recombinant gas) batteries (same thing, different names). There were a few NI-CAD batteries certified for 'big iron' a/c, but there's a history of fires with them, too. SLA batteries have pretty much taken over the market for larger high current batteries used in everything from computer backup power supplies to powered wheel chairs to starting batteries for motorcycles & watercraft. SLA batteries use the same charging technology as old flooded cell batteries, don't leak, can be installed in any position, & aren't prone to thermal self destruction like the big ni-cads were.
An SLA battery that weighs about 12-14 lbs (about 1/2 the size of a lawn tractor battery) will easily start a 360 cu in a/c engine.
When you start looking, look for ones intended as starting batteries. The ones made for computer backup and wheel chairs don't have quite as much short term 'grunt' for starting, & won't last quite as long if used to start a motor. (Though anything over about 10 ampere-hours would probably work on a small motor like a 337.)
Charlie
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jbhart(at)onlyinternet.ne
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| Posted: Mon Feb 20, 2012 7:33 pm Post subject: NI-CAD |
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Date: Mon, 20 Feb 2012 15:01:23 -0800 (PST)
From: chris davis <capedavis(at)yahoo.com>
| Quote: |
Kolbers , I forgot to ask in my last post asking about the 377s , Do the
|
NI-CAD batteries the light ones, have enough power to start a ROTAX 377- 447
? Has anyone tried one?
Chris,
I have been using an UltraStart Red Battery. They are quite expensive but
very light. You can view the battery and the holder that I used at:
http://jackbhart.com/firefly/firefly142.html
The first battery did very well, but I was disappointed with the second, in
that, it did not last very long. I popped the top red part off the battery
and discovered the actual battery model number. The cost of this original
unmodified battery is about one quarter of the UltraStart Red. I was able
to purchase a replacement battery at a local shop and add the original heavy
terminals to the new battery. How it was done can be seen at:
http://jackbhart.com/firefly/firefly160.html
I have been working on a LiFepo4 battery. I havew four A123 cells mounted
and the terminal connections welded. I believe it will shave another pound
or so off the FireFly, but it has to wait until I get FireFly back in the
air this coming Spring.
I hope this helps.
Jack B. Hart FF004
Winchester, IN
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capedavis(at)yahoo.com
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| Posted: Mon Feb 20, 2012 9:00 pm Post subject: NI-CAD |
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Jack Thanks alot for the email o the batteries I looked for the data. It is a Portalac PX12050SHR and distributed by GS Battery. Internet replacement batteries can be purchased I got a price of $14 for a 4.5 ib 12volt battery very nice . thanks again Chris
p.s. do you know anything about the SkiDo 377s ?
Chris Davis
KXP 503 492 hrs
Glider Pilot
Disabled from crash building Firefly
From: Jack B. Hart <jbhart(at)onlyinternet.net>
To: kolb-list(at)matronics.com
Sent: Monday, February 20, 2012 10:37 PM
Subject: Kolb-List: NI-CAD
--> Kolb-List message posted by: "Jack B. Hart" <jbhart(at)onlyinternet.net (jbhart(at)onlyinternet.net)>
Date: Mon, 20 Feb 2012 15:01:23 -0800 (PST)
From: chris davis <capedavis(at)yahoo.com (capedavis(at)yahoo.com)>
| Quote: |
Kolbers , I forgot to ask in my last post asking about the 377s , Do the
|
NI-CAD batteries the light ones, have enough power to start a ROTAX 377- 447
? Has anyone tried one?
Chris,
I have been using an UltraStart Red Battery. They are quite expensive but
very light. You can view the battery and the holder that I used at:
http://jackbhart.com/firefly/firefly142.html
The first battery did very well, but I was disappointed with the second, in
that, it did not last very long. I popped the top red part off the battery
and discovered the actual battery model number. The cost of this original
unmodified battery is about one quarter of the UltraStart Red. I was able
to purchase a replacement battery at a local shop and add the original heavy
terminals to the new battery. How it was done can be seen at:
http://jackbhart.com/firefly/firefly160.html
I have been working on a LiFepo4 battery. I havew four A123 cells mounted
and the terminal connections welded. I believe it will shave another pound
or so off the FireFly, but it has to wait until I get FireFly back in the
air this coming Spring.
I hope this helps.
Jack B. Hart FF004
Winchester, IN
ref="http://www.matronics.com/Navigator?Kolb-List" bsp; ==================
[quote][b]
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Ducati SS
Joined: 15 Oct 2009
Posts: 93
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| Posted: Tue Feb 21, 2012 6:07 am Post subject: Re: NI-CAD |
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Along with full scale I also fly RC airplanes. When we went to the new lithium batteries the increase in performance was dramatic. This technology is now finding it' way to cars and motorcycles. I believe the motorcycle version is supposed to start a 500cc engine at .8lbs the car version starts at less than 2lbs. I plan to do a bit more research and if the charging system is compatible buy one for my track car. When first introduced the price was 1200 but has dropped to less than $200.
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jbhart(at)onlyinternet.ne
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| Posted: Tue Feb 21, 2012 9:09 am Post subject: NI-CAD |
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Date: Mon, 20 Feb 2012 20:59:42 -0800 (PST)
From: chris davis <capedavis(at)yahoo.com>
| Quote: | Jack Thanks alot for the email o the batteries I looked for the data. It
is a Portalac PX12050SHR and distributed by GS Battery. Internet replacement
|
batteries can be purchased I got a price of $14 for a 4.5 ib 12volt battery
very nice . thanks again Chrisp.s. do you know anything about the SkiDo 377s ?
Chris,
I don't have any experience with SkiDo 377s.
I did weigh my prototype LiFepo4 battery, and it came out at 11.4 ounces.
This includes the original four cells, the two wood mounting brackets, and
the connector strips that were welded to the cells. It will put out 70
continuous and a 120 ampere pulse for 10 seconds. It is rated at a 2.5
ampere battery. The MZ 34 starter pulls 30 ampere continuous, so this
battery will crank the engine for about five minutes. The properly primed
engine usually starts in about five seconds.
Jack B. Hart FF004
Winchester, IN
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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capedavis(at)yahoo.com
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| Posted: Tue Feb 21, 2012 9:00 pm Post subject: NI-CAD |
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Duc,thanks for the tip the battery is a place Im sure I can cut a lot of weight I will spend some time finding the best price . Chris
Chris Davis
KXP 503 492 hrs
Glider Pilot
Disabled from crash building Firefly
From: Ducati SS <hiwingflyer6219(at)yahoo.com>
To: kolb-list(at)matronics.com
Sent: Tuesday, February 21, 2012 9:07 AM
Subject: Kolb-List: Re: NI-CAD
--> Kolb-List message posted by: "Ducati SS" <hiwingflyer6219(at)yahoo.com (hiwingflyer6219(at)yahoo.com)>
Along with full scale I also fly RC airplanes. When we went to the new lithium batteries the increase in performance was dramatic. This technology is now finding it' way to cars and motorcycles. I believe the motorcycle version is supposed to start a 500cc engine at .8lbs the car version starts at less than 2lbs. I plan to do a bit more research and if the charging system is compatible buy one for my track car. When first introduced the price was 1200 but has dropped to less than $200.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=366822#366822
<> httpbsp; -Matt Dralle, ===========
[quote][b]
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