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Old 09-17-2014, 05:22 PM   #11
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Ela1948 - How are you measuring your actual battery depth of discharge?
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Old 09-18-2014, 07:14 AM   #12
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Wet cells dont have memory so frequent charging is OK..
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Old 09-18-2014, 12:24 PM   #13
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Quote:
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Wet cells dont have memory......snip
I like that statement, can I use it

Bob
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Old 09-18-2014, 06:46 PM   #14
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Excuse my ignorance, but what about "marine" deep cycle batteries makes them "not true deep cycle"?
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Old 09-18-2014, 07:13 PM   #15
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Owen Stubbs,

Rather then attempt to explain it myself, I found the following explanation summarized it rather well:

""So-called “marine” batteries are an attempt to make a compromise design that combines the characteristics of starting and deep cycling. As with most compromises, they aren’t great for either need, but they may be suitable for some RV battery situations. A marine battery trades a lower CCA rating for somewhat better deep cycle performance. It’s main advantage is that it is a variation of a starting battery and can be produced by the same manufacturing process, making it a less expensive battery than a true deep cycle.""

Source: http://www.doityourselfrv.com/best-r...osing-reviews/

Bob
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Old 09-18-2014, 07:35 PM   #16
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Yes I would like to know how to measure Dod also? As soon as I unplug my panel on the inside of the trailer drops to 2/3's in a matter of a minute or less. I know that it is not 66% at that point. They should have better gauges for all the tanks and battery read outs instead of the E,1/3,2/3 and full measurements.
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Old 09-18-2014, 07:48 PM   #17
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Quote:
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Ela1948 - How are you measuring your actual battery depth of discharge?
I use a TriMetric Battery Monitor with my battery bank.



My installation: https://www.jaycoowners.com/forums/sh...attery+monitor

Bob
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Old 09-18-2014, 09:04 PM   #18
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Ela1948 - How are you measuring your actual battery depth of discharge?
I installed a voltage meter on the kitchen panel.
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Old 09-18-2014, 09:20 PM   #19
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When I have used the inverter, there is a period of time that the batteries haven't had time to recover from heavy use. But always in the morning after a time of light activity, the voltage which has been running from 12.35 volt to 12.45 volts. This seems to give very accurate readings on battery conditions. That indicates to me that I've got 75 to 80 percent left. I really don't like discharging below 60 percent..
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Old 09-18-2014, 09:35 PM   #20
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Quote:
Originally Posted by Ela1948 View Post
the voltage which has been running from 12.35 volt to 12.45 volts. This seems to give very accurate readings on battery conditions. That indicates to me that I've got 75 to 80 percent left. I really don't like discharging below 60 percent..
I would encourage you to read about the Tri-Metric Battery Meter. I have the model 2025-RV model installed. After you've read about them and why you may want one, feel free to visit my pics on the link on this mod. It is really the only true "gas gauge" you can hope for with a battery bank.

Rustic Eagle has a tri metric install link above as well.

https://www.jaycoowners.com/forums/members/30509-albums488.html
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