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neilsenrm(at)gmail.com
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 Posted: Tue Apr 05, 2011 12:04 pm Post subject: Lithium Batteries |
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I ran across these Lithium starter batteries at the Wicks display at Sun N Fun. http://www.lithiumaviationbattery.com/index.html
They claim to be safe using a LiFepo4 chemistry???? They also weigh 2lbs. or 1.7lbs in shrink wrap (the polycarbonate case with brass terminals just seem to be worth it) for the 200 cold cranking amp size in a polycarbonate case and sell for $200. My current 12 AH 155cca lead acid battery weighs about 10lbs and is on the marginal end of required power. They rate this at 200cca which would be a major improvement. They also claim three times the life of lead acid batteries.
My interest is a savings of 8 lbs from my airplane. I worked very hard to save a few pounds when building my plane and it paid off but to save an additional 8 lbs for $200 doesn't sound that bad and if they last longer the price may no be that much more. Seems I pay about $45 for my lead acid batteries and the last 3-4 years if I keep a battery maintainer on it. I'm just throwing this out there. I may or my not buy this battery.
Rick Neilsen
Redrive VW Powered MKIIIC
[quote][b]
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slyck(at)frontiernet.net
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| Posted: Tue Apr 05, 2011 12:26 pm Post subject: Lithium Batteries |
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My battery goes into my lawn mower after a few years. Drink lite beer, save the same 6 lbs, save money and enjoy life more.BB
MkIII, suzuki
cheap lawn mower battery mounted in front of the pedals.
On 5, Apr 2011, at 4:02 PM, Rick Neilsen wrote:
[quote]I ran across these Lithium starter batteries at the Wicks display at Sun N Fun. http://www.lithiumaviationbattery.com/index.html
They claim to be safe using a LiFepo4 chemistry???? They also weigh 2lbs. or 1.7lbs in shrink wrap (the polycarbonate case with brass terminals just seem to be worth it) for the 200 cold cranking amp size in a polycarbonate case and sell for $200. My current 12 AH 155cca lead acid battery weighs about 10lbs and is on the marginal end of required power. They rate this at 200cca which would be a major improvement. They also claim three times the life of lead acid batteries.
My interest is a savings of 8 lbs from my airplane. I worked very hard to save a few pounds when building my plane and it paid off but to save an additional 8 lbs for $200 doesn't sound that bad and if they last longer the price may no be that much more. Seems I pay about $45 for my lead acid batteries and the last 3-4 years if I keep a battery maintainer on it. I'm just throwing this out there. I may or my not buy this battery.
Rick Neilsen
Redrive VW Powered MKIIIC
[b]
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jbhart(at)onlyinternet.ne
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| Posted: Tue Apr 05, 2011 2:53 pm Post subject: Lithium Batteries |
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Date: Tue, 5 Apr 2011 16:02:19 -0400
From: Rick Neilsen <neilsenrm(at)gmail.com>
| Quote: |
...................
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My interest is a savings of 8 lbs from my airplane. I worked very hard to
save a few pounds when building my plane and it paid off but to save an
additional 8 lbs for $200 doesn't sound that bad and if they last longer the
price may no be that much more. Seems I pay about $45 for my lead acid
batteries and the last 3-4 years if I keep a battery maintainer on it. I'm
just throwing this out there. I may or my not buy this
battery.
Rick,
When I was having battery trouble, someone on the list suggested lithium
batteries. I followed up on the idea and found the A123 batteries. Last
Fall I started building up a battery assembly for the FireFly. As it stands
today, it weighs in at 11.5 ounces.
My biggest problem was finding someone who could weld the interconnecting
leads onto the individual cells. I have taken photos of the process, but
I have not assembled a page to describe the process. If there is interest,
I will put up a page.
Jack B. Hart FF004
Winchester, IN
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rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
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| Posted: Tue Apr 05, 2011 6:15 pm Post subject: Lithium Batteries |
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Rick, The only thing I would fret about, besides the price, is how it would handle a deep discharge without a special charger to first warm the battery and then ramp up the charge rate. I'm with Bob Bean, get an 18 or 20 amp AGM and pocket the cash.
Rick Girard
On Tue, Apr 5, 2011 at 3:02 PM, Rick Neilsen <neilsenrm(at)gmail.com (neilsenrm(at)gmail.com)> wrote:
| Quote: | I ran across these Lithium starter batteries at the Wicks display at Sun N Fun. http://www.lithiumaviationbattery.com/index.html
They claim to be safe using a LiFepo4 chemistry???? They also weigh 2lbs. or 1.7lbs in shrink wrap (the polycarbonate case with brass terminals just seem to be worth it) for the 200 cold cranking amp size in a polycarbonate case and sell for $200. My current 12 AH 155cca lead acid battery weighs about 10lbs and is on the marginal end of required power. They rate this at 200cca which would be a major improvement. They also claim three times the life of lead acid batteries.
My interest is a savings of 8 lbs from my airplane. I worked very hard to save a few pounds when building my plane and it paid off but to save an additional 8 lbs for $200 doesn't sound that bad and if they last longer the price may no be that much more. Seems I pay about $45 for my lead acid batteries and the last 3-4 years if I keep a battery maintainer on it. I'm just throwing this out there. I may or my not buy this battery.
Rick Neilsen
Redrive VW Powered MKIIIC
| Quote: |
get="_blank">http://www.matronics.com/Navigator?Kolb-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
[quote][b]
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The smallest miracle right in front of you is enough to make you happy.... |
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rickofudall
Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA
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| Posted: Tue Apr 05, 2011 7:08 pm Post subject: Lithium Batteries |
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Rick, I run an AGM 20 amp hour battery that cost me $36 at the battery shop in Wichita. It's the same form factor as an Odyssey PC 680. It's been in the aircraft for 5 years and still starts my 582 when the temps are down to freezing and I don't use a trickle charger, I just fly at least once a month all year long.
Rick
On Tue, Apr 5, 2011 at 9:51 PM, Rick Neilsen <neilsenrm(at)gmail.com (neilsenrm(at)gmail.com)> wrote:
| Quote: | Rick
Let me try this one last time as clearly as I can. "I like the idea of saving 8lbs"!
A 18-20 amp AGM would add more weight and be more expensive than what I have been flying with for the last 12years in my Kolb.
The cost is a big factor. The deep discharge concern with a battery that has 50% more capacity than what I have been using successfully doesn't seem like a issue till it is near its useful life.
Thank you for your interest.
Do Not Archive
Rick Neilsen
Redrive VW Powered MKIIIC
On Tue, Apr 5, 2011 at 10:13 PM, Richard Girard <aslsa.rng(at)gmail.com (aslsa.rng(at)gmail.com)> wrote:
| Quote: | Rick, The only thing I would fret about, besides the price, is how it would handle a deep discharge without a special charger to first warm the battery and then ramp up the charge rate. I'm with Bob Bean, get an 18 or 20 amp AGM and pocket the cash.
Rick Girard
On Tue, Apr 5, 2011 at 3:02 PM, Rick Neilsen <neilsenrm(at)gmail.com (neilsenrm(at)gmail.com)> wrote:
| Quote: | I ran across these Lithium starter batteries at the Wicks display at Sun N Fun. http://www.lithiumaviationbattery.com/index.html
They claim to be safe using a LiFepo4 chemistry???? They also weigh 2lbs. or 1.7lbs in shrink wrap (the polycarbonate case with brass terminals just seem to be worth it) for the 200 cold cranking amp size in a polycarbonate case and sell for $200. My current 12 AH 155cca lead acid battery weighs about 10lbs and is on the marginal end of required power. They rate this at 200cca which would be a major improvement. They also claim three times the life of lead acid batteries.
My interest is a savings of 8 lbs from my airplane. I worked very hard to save a few pounds when building my plane and it paid off but to save an additional 8 lbs for $200 doesn't sound that bad and if they last longer the price may no be that much more. Seems I pay about $45 for my lead acid batteries and the last 3-4 years if I keep a battery maintainer on it. I'm just throwing this out there. I may or my not buy this battery.
Rick Neilsen
Redrive VW Powered MKIIIC
|
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
get="_blank">http://www.matronics.com/Navigator?Kolb-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
|
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
[quote][b]
| | - 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:
http://www.matronics.com/Navigator?Kolb-List |
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_________________
The smallest miracle right in front of you is enough to make you happy.... |
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