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 > Your search for posts made by 'Katdaddy' found 8 matches.

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RE: And Another Battery Question

You can order one here: Thanks!
Katdaddy 10/28/21 08:38pm Tech Issues
RE: And Another Battery Question

The ambiguity would be found with a hydrometer. There must be a hundred discussions on this forum about hydomerers usage, links, types and brands. My Samsung cellular goes from 100 to 50% in three hours. Then from 45% to 12% shutdown the next hour. Next to useless. Go to Http:// Download their battery manual You have batteries exhibiting classic signs of partial sulfation. Yes, I have decided that the hydrometer is going with me next year. On a related note, I gave a cheaper hydrometer. I know that you have recommended a Francis Freas. I’m having trouble finding where to purchase one. Can anyone help with a website or store?
Katdaddy 10/28/21 08:05am Tech Issues
RE: And Another Battery Question

What DC load is on the batts while camping for that 12.3 that is not on at home for that 12.6? You can't tell "90% charge" with a load on the batts. You can get a voltage but can only guess at the % of capacity, and you have to guess at the capacity too, since it changes with temperature. Your batts are no doubt sulfated somewhat from lack of time at 14.8v and equalizations to 16v from time to time, so they might have more of a voltage drop under load that batteries in better shape. The loads are exactly the same. That is what is confusing me. I exercise the batteries regularly. I draw them down to around 50% and then apply a 14.8 charge while checking the SG. Equalized right before this trip.
Katdaddy 10/27/21 03:22pm Tech Issues
RE: And Another Battery Question

The solar would show the voltage up to 13.00 during the day and then it would again drop to 12.30 after dark. What does 'the solar would show' mean? The panel on the controller? During full sun? The readout on the controller and my volt meter would read 13.00. Never had what I would call full sun. The most input I saw was 48 watts. The batteries read 12.30 when we got there and, with solar each day read 12.30 when we left.
Katdaddy 10/27/21 02:04pm Tech Issues
RE: And Another Battery Question

Katdaddy, 90% after sitting idle for 24 hours? Yes.
Katdaddy 10/27/21 02:01pm Tech Issues
RE: And Another Battery Question

I guess I didn't express my question clearly. What I am curious about is, the Sg and voltage showed around 90% charge on my batteries right before I left home. The whole time I was in the mountains the voltage read around 12.30. The solar would show the voltage up to 13.00 during the day and then it would again drop to 12.30 after dark. As soon as I got home the voltage is back up to 12.60. Where did that .30 go during my time in the mountains and why did it immediately show back up when I got home?
Katdaddy 10/27/21 01:32pm Tech Issues
RE: And Another Battery Question

Batteries are 3 years old and we are very conservative with battery usage. The part that confuses me is the voltage is back up now that we are home. I guess I am going to have to take hydrometer next year to see what it says.
Katdaddy 10/27/21 10:50am Tech Issues
And Another Battery Question

We just got back from our yearly trip to the Cades Cove. No hookups in the campground, so we are dry camping. I equalized the batteries right before we left and after resting overnight the batteries voltage showed 90%. We get to the campground and set up and voltage shows 70%. I have a solar panel and it would show the batteries fully charged by the end of the day, but as soon as the sun went down they went back down to 70ish%. Sams Club golf cart batteries. The temps at home before we left when I checked everything was in the 80s. Temps in the mountains were low 60s during the day and low 40s at night. I let the batteries rest overnight when we got home yesterday and voltage back to around 100%. So, does altitude affect readings? I have a chart that I printed of web some years back that shows voltage readings according to temperature. That chart shows the 12.30 reading at the temps we were experiencing as between 90 to 100%. Is this in any way accurate? With the solar panel we have plenty of juice, just trying to understand what is going on. As always, thanks for all your help.
Katdaddy 10/27/21 09:52am Tech Issues
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