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Old 05-17-2015, 05:13 PM   #11
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Join Date: Jul 2014
Location: Tampa Bay Area, Florida
Trailer: 2015 5.0TA
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Originally Posted by alanmalk View Post
This is a worthwhile concern. Lead/Acid batteries do have a finite life even if kept on the proper charge/maintenance schedule. Ask anyone with a UPS (Uninterruptible Power Supply) for their computer. They stay on a well-regulated float supply and still fail at 3 to 4 years. Your battery may of course last longer if higher quality or larger, but it will fail.
Yes, all batteries eventually fail. But I can say from experience I took a deep cycle battery that an acquaintance was disposing because it was "no good" and using a desulphating charger, brought it back to "life" in about a months time, then used it for approximately 5 years. While desulphation chargers are more expensive, my deep cycle batteries tend to last between 7 and 10 years in Florida, and heat causes batteries to fail prematurely, not cold. So when I previously stated "properly maintained," I meant by a smart charger that has desulphation capabilities. Most batteries die before their time due to improper maintenance caused by sulphur build up on the plates which shorts out the battery's cells.

2015 F150 2.7 EcoBoost (Big Spot)
2015 5.0TA (Little Elsie)
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Old 05-17-2015, 09:26 PM   #12
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Join Date: Jun 2014
Location: MeNo$, Wisconsin
Trailer: 19' - Oct 2o15
Posts: 26
Good Morning Carl - -
Which desulphation charger do you use ?
They seem to have a very large range in price. What should look for in these chargers ?
Do you know of an "educational page" on these chargers ?

Thank You Cark for your thoughts.


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Old 05-17-2015, 09:37 PM   #13
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Join Date: Sep 2013
Location: Los Osos, California
Trailer: 2014 21 2013 Yukon
Posts: 2,664
Originally Posted by cpaharley2008 View Post
If you order the the group 29 battery option, ETI installs the larger battery box which holds dual 6 volts. That is what I did, so just ask for the larger box, regardless of which battery you choose.
Good tip; showed my 21 to a couple today and the topic of non-listed options came up more than once. Pays to tune in. Have to say it again....for us, where we live/camp the Group 29 12V is more than adequate after 100+ nights so far. Never goes below 3/4 charge even with a week of clouds/rain.
Edit: we do have the 160W solar panel.

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