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Old 12-01-2015, 06:10 AM   #29
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Originally Posted by ladagobago View Post
Well it is certainly apparent from the myriad of comments and discussions here and lots of other places, that the charger mechanism is the final answer to battery longevity, gassing, water replenishment and "battery happiness". Thank you progressive.
The best charger in the world won't protect a battery from misuse.

Run it down below 11 volts, along with letting it sit dead are the biggest killers.

Expect 2 years life on a battery with a sad face :(

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Old 12-01-2015, 06:31 AM   #30
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I haven't checked lately but I'm pretty sure there are no long term answers for our house or starting batteries at Walmart.

It's hard to beat a properly setup solar system when it comes to charging. I thinks it's always best to assume your coach inverter/converter charger is not setup correctly. Research your batteries, find the set points for the various stages and monitor occasionally. It's possible and maybe even likely that the voltage at the batteries is not what is recommended for a given stage/temperature.

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Old 12-01-2015, 03:28 PM   #31
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We are also plugged into 20 amp service. I put a timer before the outlet and it is on for a couple of hours a day.

I have never worried about the batteries - always up to charge and no boil.
Don Simmons
2006 Winnebago Voyage 33V Pushed by a 2014 Chevrolet Captiva
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Old 12-02-2015, 07:51 AM   #32
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Originally Posted by Clifftall View Post
I periodically check and add water when needed.
I converted house batteries to AGM that don't need water. Stay plugged in all the time in our barn.
36' Itasca Meridian DP, now 2005 Newmar Scottsdale 34' Gas
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Old 12-02-2015, 03:27 PM   #33
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I had an 02 Fleetwood Southwind with a progressive dynamics converter. I added a "Charge Wizard" and it managed the charge level so as to not boil 2 6 volt batteries. My 05 Monaco has an Inverter/Charger and it can be left on 24/7.
2005 Monaco Diplomat 40PDQ
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Old 12-02-2015, 04:27 PM   #34
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I leave my rig unplugged for up to 4 months in the summer. If I make sure the 12v are off and so is everything else, I'm fine. I go over a week before my scheduled leave and plug it in for maybe 24 hours just to top things off. The only time I had a problem is when my better half left the passenger seat heater on. I didn't realize that draws power from the chassis/starting batteries and they were very low when I checked it out. Plugged her in and after a day things were up to starting like normal. If I could store the rig at the house, I would have her plugged in 2 out of seven days a week. JMO mark
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Old 12-02-2015, 07:53 PM   #35
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I'm plugged in to a 20A circuit 24/7.
2005 Fleetwood Excursion 39L, 350 Cat, Allison 3000, 1991 Honda Accord EX
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Old 12-04-2015, 10:38 AM   #36
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Update: I called a Trojan battery dealer in Spokane (the only dealer in Spokane) and asked him how long the 6V batteries last and he said depending on treatment 6-11 years. He said my batteries, which were built in 2011, have quite a few years left in them. Each battery is holding 6.9V. He said if I'm not discharging the batteries while the MH is in my storage then turning off the converter/charger is recommended on an intermittent basis. He said Trojans have very pure lead in them and once charged even trickle chargers will over charge them resulting in gassing. He said what I am doing is the right thing (plug and unplug or least turning the converter/charger off once a week). He even recommended discharging them by running house lights etc. so they can recycle once in a while. He said those that are running their converter/chargers 24/7 are usually using their MH's and are not having them sitting in storage for months at a time without any discharging of the batteries.

02 Fleetwood Discovery 37U, 330 Cat pulling a 2006 diesel Liberty..or..2011 4dr Wrangler..or..20' Lund Salmon/Halibut Hunter
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