Today's Message Index:
----------------------
1. 12:38 AM - Re: Re: Small battery choice (Bob Verwey)
2. 06:06 AM - Re: Re: Small battery choice (Kelly McMullen)
3. 12:55 PM - Re: Re: Small battery choice (Peter Pengilly)
4. 02:03 PM - Re: Re: Small battery choice (Charlie England)
Message 1
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| Subject: | Re: Small battery choice |
I think the obsession with small batteries creates much more aggravation
than benefits. I can understand the importance of weight saving in small
aircraft.
Your stock Concorde or equivalent typically lasts many years despite abuse.
On Fri, 13 Sept 2024 at 07:36, AdventureD <dobrien@microfoundations.com>
wrote:
> dobrien@microfoundations.com>
>
> I should mention that my Odyssey 680s had 300 and 400 hours on them when
> they failed, which was probably like 150 and 200 starts. Is that about how
> long they last? Should they last longer? Did I get reasonable life out of
> them?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=513823#513823
>
>
--
Best Regards,
Bob Verwey
082 331 2727
Message 2
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| Subject: | Re: Small battery choice |
Over the 8 years I have had my RV-10 I hav e used 2 Odyssey 925's, and
am still on the 2nd one.
On 9/13/2024 12:37 AM, Bob Verwey wrote:
> I think the obsession with small batteries creates much more
> aggravation than benefits. I can understand theimportance of weight
> saving in small aircraft.
> Your stock Concorde or equivalent typically lasts many years despite
> abuse.
>
>
> On Fri, 13 Sept 2024 at 07:36, AdventureD
> <dobrien@microfoundations.com> wrote:
>
> <dobrien@microfoundations.com>
>
> I should mention that my Odyssey 680s had 300 and 400 hours on
> them when they failed, which was probably like 150 and 200
> starts. Is that about how long they last? Should they last
> longer? Did I get reasonable life out of them?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=513823#513823
>
>
Message 3
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| Subject: | Re: Small battery choice |
Odyssey batteries seem to take a fair amount of abuse if they are used
regularly. I had an aerobatic aircraft that had a PC-680 and an SD-8 and
flew many short trips. The battery can hardly ever have been fully charged.
Didn't seem to matter. If we left it over the winter with little use, even
if it was charged occasionally, it would become unhappy (run out of charge
quickly) soon after we started flying again. If it was taken out over the
winter and put on a tender it lasted for a few years. Sorry, can't remember
the specifics.
On Fri, 13 Sept 2024, 14:14 Kelly McMullen, <kellym@aviating.com> wrote:
> Over the 8 years I have had my RV-10 I hav e used 2 Odyssey 925's, and am
> still on the 2nd one.
> On 9/13/2024 12:37 AM, Bob Verwey wrote:
>
> I think the obsession with small batteries creates much more aggravation
> than benefits. I can understand the importance of weight saving in small
> aircraft.
> Your stock Concorde or equivalent typically lasts many years despite
> abuse.
>
>
> On Fri, 13 Sept 2024 at 07:36, AdventureD <dobrien@microfoundations.com>
> wrote:
>
>> dobrien@microfoundations.com>
>>
>> I should mention that my Odyssey 680s had 300 and 400 hours on them when
>> they failed, which was probably like 150 and 200 starts. Is that about how
>> long they last? Should they last longer? Did I get reasonable life out of
>> them?
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=513823#513823
>>
>>
>>
>>
Message 4
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| Subject: | Re: Small battery choice |
Unless the start was a really difficult one, it pulls very little total
energy from the battery, and it will get topped up fairly quickly by a
40-60 amp alternator.
RE Odyssey, I've been using AGMs in aircraft for over 20 years, and I've
never bought an Odyssey. I've always shopped ebay/Amazon for the best price
on 20-22AH AGMs at the moment, and with a single undiscovered shipping
damaged copy, I've gotten 3-5 years service from them. I never use
maintainers, but if the plane has been sitting for several *months*, I
might 'top it up' with a short charge session (though I've also found that
it's rarely if ever necessary). Only time I've had shorter life was when
I've accidentally abused one by leaving the Master on. If there are no
'vampire' loads sucking on the battery while the plane is sitting, an AGM
is usually at 80% charge after sitting for 6-12 months, according to
Odyssey's own technical docs (which remain excellent, whether their
batteries are still up to snuff or not).
The only caution I'd offer about the generic AGMs is to try to find the
battery's internal impedance in the specs. If it's above around 10
milliohms, it's probably not the best choice for a starting battery; it was
probably designed for UPS duty rather than a vehicle. Having said that,
I've found that the 20-22AH versions, as long as they have fairly
substantial looking posts, they'll work just fine for starting a Lyc.
FWIW, YMMV, etc
Charlie
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ampaign=sig-email&utm_content=webmail>
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On Fri, Sep 13, 2024 at 2:58=AFPM Peter Pengilly <peter@sportingaero.
com>
wrote:
> Odyssey batteries seem to take a fair amount of abuse if they are used
> regularly. I had an aerobatic aircraft that had a PC-680 and an SD-8 and
> flew many short trips. The battery can hardly ever have been fully charge
d.
> Didn't seem to matter. If we left it over the winter with little use, eve
n
> if it was charged occasionally, it would become unhappy (run out of charg
e
> quickly) soon after we started flying again. If it was taken out over the
> winter and put on a tender it lasted for a few years. Sorry, can't rememb
er
> the specifics.
>
> On Fri, 13 Sept 2024, 14:14 Kelly McMullen, <kellym@aviating.com> wrote:
>
>> Over the 8 years I have had my RV-10 I hav e used 2 Odyssey 925's, and a
m
>> still on the 2nd one.
>> On 9/13/2024 12:37 AM, Bob Verwey wrote:
>>
>> I think the obsession with small batteries creates much more aggravation
>> than benefits. I can understand the importance of weight saving in small
>> aircraft.
>> Your stock Concorde or equivalent typically lasts many years despite
>> abuse.
>>
>>
>> On Fri, 13 Sept 2024 at 07:36, AdventureD <dobrien@microfoundations.com>
>> wrote:
>>
>>> dobrien@microfoundations.com>
>>>
>>> I should mention that my Odyssey 680s had 300 and 400 hours on them whe
n
>>> they failed, which was probably like 150 and 200 starts. Is that about
how
>>> long they last? Should they last longer? Did I get reasonable life out
of
>>> them?
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=513823#513823
>>>
>>>
>>>
>>>
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