Today's Message Index:
----------------------
1. 05:53 AM - Re: Residue on negative battery pole (Robert L. Nuckolls, III)
2. 08:08 AM - Re: Residue on negative battery pole (Charlie England)
3. 09:16 AM - Re: Residue on negative battery pole (Werner Schneider)
4. 12:28 PM - Re: Residue on negative battery pole (Robert L. Nuckolls, III)
5. 01:11 PM - Re: Residue on negative battery pole (Werner Schneider)
6. 01:28 PM - Re: Residue on negative battery pole (Charlie England)
7. 01:38 PM - Re: Residue on negative battery pole (C&K)
Message 1
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| Subject: | Re: Residue on negative battery pole |
>
><https://www.harborfreight.com/100a-612v-battery-load-tester-61747.html>https://www.harborfreight.com/100a-612v-battery-load-tester-61747.html
>for 2.5x the price
Before you spend money on this thing, let
me pick one up and do an autopsy on it.
I didn't get a really close look at the
last one I saw but I'm skeptical of
its performance claims.
I'll find out.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 2
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| Subject: | Re: Residue on negative battery pole |
snipped
>>
>> http://aeroelectric.com/Mfgr_Data/Batteries/Panasonic/lc-x1220p.pdf
>> <http://aeroelectric.com/Mfgr_Data/Batteries/Panasonic/lc-x1220p.pdf>
>
> Panasonic dropped many of their types, looks like they get out of VLRA
> business.
> The LC-XC1222 is flagged as end of life (XC was their notation for
> Cycle long life type)
> with that same form factor only the
> LC-P1220 15mOhm
> LC-PD1217 17mOhm
> are available
>
> I found as well two interesting documents, a VRLA white paper about
> internal resistance and VRLA Handbook with all current models.
> found them here (scroll down)
> https://industry.panasonic.eu/products/energy-building/batteries/battery-cells/secondary-batteries-rechargeable-batteries/valve-regulated-lead-acid-batteries
>
> On the US site I found two different 17Ah batteries (all flaged as
> discontinued):
> Cycle and trickle use LC-RD1217P 12mOhm
> Long life trickle use LC-PD1217 17mOhm
> Looks I should search for a cycle use battery as that one has the
> lower internal resistance
>
> Or swap to an Odysee as they claim 7mOhm for the same form factor
snipped
No idea what's available in Europe, but at least here in the USA, there
are many batteries that will work well as starting/endurance batteries.
Here's one on the French Amazon site that I wouldn't hesitate to use in
my RV6:
https://www.amazon.fr/Batterie-agm-12v-22ah-victron/dp/B016C1FUS2/ref=sr_1_26?crid=37965HB22594Q&keywords=sla+battery+12v+20+ah&qid=1643126325&sprefix=sla+battery+12v+20+ah%2Caps%2C239&sr=8-26
Note that most of the 20AH & 22AH SLA batteries will fit in the same
mount as an Odyssey PC680. They also have more total energy, for
failed-alternator endurance. I've used batteries from at least 3 or 4
different brands/vendors over the years, and all give performances at
least on par with Odyssey batteries. Based on some anecdotal evidence
from RV-x owners, these 'no name' batteries may even be better than the
current production Odysseys.
FWIW,
Charlie
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Message 3
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| Subject: | Re: Residue on negative battery pole |
Thanks Charlie,
I can find similar Amazon offers down to 40 Euros, the poles look a bit
less solid then on the Panasonic once, they are as well available
17/20/22Ah from different brands the housing looks similar for each of
them would be nice if one could get more technical details.
Pansonic did offer two different lines where one was with less internal
resistance then the other, The PC680 is available for around 125 Euro.
What just did make me wonder I had in 17.5 years used 3 batteries
(17/20/22Ah they all lasted well, this last one lasted just 10 months,
no idea why....
Cheers Werner (the 100A tester will be in 2morrow)
On 25.01.2022 17:13, Charlie England wrote:
> <ceengland7@gmail.com>
>
> snipped
>>>
>>> http://aeroelectric.com/Mfgr_Data/Batteries/Panasonic/lc-x1220p.pdf
>>> <http://aeroelectric.com/Mfgr_Data/Batteries/Panasonic/lc-x1220p.pdf>
>>
>> Panasonic dropped many of their types, looks like they get out of
>> VLRA business.
>> The LC-XC1222 is flagged as end of life (XC was their notation for
>> Cycle long life type)
>> with that same form factor only the
>> LC-P1220 15mOhm
>> LC-PD1217 17mOhm
>> are available
>>
>> I found as well two interesting documents, a VRLA white paper about
>> internal resistance and VRLA Handbook with all current models.
>> found them here (scroll down)
>> https://industry.panasonic.eu/products/energy-building/batteries/battery-cells/secondary-batteries-rechargeable-batteries/valve-regulated-lead-acid-batteries
>>
>> On the US site I found two different 17Ah batteries (all flaged as
>> discontinued):
>> Cycle and trickle use LC-RD1217P 12mOhm
>> Long life trickle use LC-PD1217 17mOhm
>> Looks I should search for a cycle use battery as that one has the
>> lower internal resistance
>>
>> Or swap to an Odysee as they claim 7mOhm for the same form factor
> snipped
>
> No idea what's available in Europe, but at least here in the USA,
> there are many batteries that will work well as starting/endurance
> batteries. Here's one on the French Amazon site that I wouldn't
> hesitate to use in my RV6:
> https://www.amazon.fr/Batterie-agm-12v-22ah-victron/dp/B016C1FUS2/ref=sr_1_26?crid=37965HB22594Q&keywords=sla+battery+12v+20+ah&qid=1643126325&sprefix=sla+battery+12v+20+ah%2Caps%2C239&sr=8-26
>
>
> Note that most of the 20AH & 22AH SLA batteries will fit in the same
> mount as an Odyssey PC680. They also have more total energy, for
> failed-alternator endurance. I've used batteries from at least 3 or 4
> different brands/vendors over the years, and all give performances at
> least on par with Odyssey batteries. Based on some anecdotal evidence
> from RV-x owners, these 'no name' batteries may even be better than
> the current production Odysseys.
>
> FWIW,
>
> Charlie
>
Message 4
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| Subject: | Re: Residue on negative battery pole |
At 11:15 AM 1/25/2022, you wrote:
>
>Thanks Charlie,
>
>I can find similar Amazon offers down to 40 Euros, the poles look a bit
>less solid then on the Panasonic ones . . .
Some modern SLVA batteries have rather skinny
terminals . . . some builders have experienced
difficulties with posts breaking off due to
bending loads transmitted though robust cables.
A good practice for attaching wire to these
or any battery is to fabricate the jumpers
from battery to ground and contactor from 4AWG
welding cable. Soft, easy to work with, entirely
suited to task. These are also mechanically
friendlier to battery terminals.
4AWG welding cable is quite often suited
for all of ship's fat wires but if you already
have something else installed, the substitution
of welding cable for the battery leads is
still a good idea.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
Message 5
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| Subject: | Re: Residue on negative battery pole |
I have a rear mounted battery so that would mean either a lot of work to
replace or a short interconnect between the two cable types.
still opting for a battery with more robust poles
On 25.01.2022 21:27, Robert L. Nuckolls, III wrote:
> 4AWG welding cable is quite often suited
> =C2- for all of ship's fat wires but if you already
> =C2- have something else installed, the substitution
> =C2- of welding cable for the battery leads is
> =C2- still a good idea.
Message 6
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| Subject: | Re: Residue on negative battery pole |
On 1/25/2022 3:10 PM, Werner Schneider wrote:
> I have a rear mounted battery so that would mean either a lot of work
> to replace or a short interconnect between the two cable types.
>
> still opting for a battery with more robust poles
>
> On 25.01.2022 21:27, Robert L. Nuckolls, III wrote:
>> 4AWG welding cable is quite often suited
>> for all of ship's fat wires but if you already
>> have something else installed, the substitution
>> of welding cable for the battery leads is
>> still a good idea.
>
The bigger, internal-nut style is available in 'no-name' batteries as
well; I've used both style posts with good success. For me, the biggest
advantage of the bigger posts is more choices of cable orientation (it
can exit across the top of the battery, instead of only up or away). The
one I linked was just the 1st that I saw on the French Amazon page. I
use welding cable for fat wires, as Bob says above.
Charlie
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Message 7
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| Subject: | Re: Residue on negative battery pole |
I've used these. The photo says it all. Just a fixed resistance. No
switch or timer or anything else.
Ken
On 24-Jan.-22 9:59 p.m., Robert L. Nuckolls, III wrote:
>>
>> https://www.harborfreight.com/100a-612v-battery-load-tester-61747.html
>> for 2.5x the price
>
> Before you spend money on this thing, let
> me pick one up and do an autopsy on it.
> I didn't get a really close look at the
> last one I saw but I'm skeptical of
> its performance claims.
>
> I'll find out.
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
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