pianotuna
Regina, SK, Canada
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Joined: 12/18/2004
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Hi all,
This winter I was not home. There was an early heavy snow and the solar panels on the rv were covered all winter.
So far I've had about 19 amps going into them for one hour. After 24 hours, resting voltage was 8.1
I did another 20 minutes and voltage while charging started at 10.1 and ended at 11.3.
I'm hoping that when I have some shore power, I'll be able to rescue the telcom jars.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.
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wa8yxm
Davison Michigan (East of Flint)
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Joined: 07/04/2006
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If those are edison cells and likely glass jars.. You can boil 'em to desulfate if you have to.. Just don't boil 'em too long (By Boil I mean overcharge)
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
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pianotuna
Regina, SK, Canada
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wa8yxm wrote:If those are edison cells and likely glass jars.. You can boil 'em to desulfate if you have to.. Just don't boil 'em too long (By Boil I mean overcharge)
wa8yxm,
They are a variation on AGM but used in cell towers.
I do wish I had edison cells.
* This post was
edited 04/23/23 09:23am by pianotuna *
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pianotuna
Regina, SK, Canada
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Things are looking good for the battery bank.
Started shore power bulk charging at 62 amps rising to 84 amps. After 5 hours 59 amps. At 11 hours down to 10 amps float charging. 15 hours in and float is 1 amp
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StirCrazy
Kamloops, BC, Canada
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Joined: 07/16/2003
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pianotuna wrote:Things are looking good for the battery bank.
Started shore power bulk charging at 62 amps rising to 84 amps. After 5 hours 59 amps. At 11 hours down to 10 amps float charging. 15 hours in and float is 1 amp
Do you have a proper load tester? might be worth checking them after they are full and have rested an hour to see if the very low voltage state they got to have impacted their capacity. mind you if you don't have a reference to what they were before it's just the current state not really a comparison. I know normal batteries including agm can have issues if they get to low.
2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100
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MEXICOWANDERER
las peñas, michoacan, mexico
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A few months ago I posted a note about recovering a 11 year old neglected Lifeline AGM. To make a short story shorter, I ended up leaving the battery connected at 15.5 volts for two weeks.
No it didn't heat up
It did not lose 1 gram of weight
But yes, it finished holding 13.3 volts @ 55° for a week afterwards.
Neglected? Yes. Disconnected for 3 years
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pianotuna
Regina, SK, Canada
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Hi Mex,
Your thread inspired me to try to fix these. So thanks again for all your help.
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StirCrazy
Kamloops, BC, Canada
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MEXICOWANDERER wrote:A few months ago I posted a note about recovering a 11 year old neglected Lifeline AGM. To make a short story shorter, I ended up leaving the battery connected at 15.5 volts for two weeks.
No it didn't heat up
It did not lose 1 gram of weight
But yes, it finished holding 13.3 volts @ 55° for a week afterwards.
Neglected? Yes. Disconnected for 3 years
Was the capacity affected at all? I have revived car batteries before that were DOA some worked with a lower capacity, most didn't... I know that agm can handle a bit more punishment than regular ones, but not a lot more
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MEXICOWANDERER
las peñas, michoacan, mexico
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I haven't performed a standardized ampere hour test but I did do this...
Let it sit as I described. Then operated a tube heated 24 volt heated reservoir ResMed BiPap for 17 hours (total) via a 300 watt Samlex PSW inverter, disconnected everything then it sat for (perhaps) 4 days.
Observed voltage 12.69
Keep in mind this battery was picked up March 2012 and stood standby for many years being maintained at strictly observed Concorde float values
Conclusion: like me the battery is obsolete so formal testing would be moot. I mentioned this merely as being curious. There is no reason to be prejudiced by assumption. Until I can walk again or have motive assistance I seem to be "stuck" in an environment that has near infallible electrical service. My neighbor across the street is a regional bigwig for CFE the government electricity agency ![[emoticon]](https://forums.goodsamclub.com/sharedcontent/cfb/images/grin.gif "grin")
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pianotuna
Regina, SK, Canada
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I'm pretty sure I have reduced capacity. But then, I have (blush), turned into a power pole princess. I do love my load support and since I've had the Magnum inverter I've blown one breaker in 7 years (4 of which were as full time).
I'll most probably limp through this year with the telcoms.
I'm on a 23 day trip with 15 stops and all of them have atleast a 15 amp service. Some have multiple 15 amps and my destination has a weak 50 amp.
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