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Old 12-03-2007, 02:15 PM   #1
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First winter with a motor home in Connecticut. Wish to leave batteries in so we can get away if we want to. Looks like I need a battery charger to keep the batteries conditioned. All the local auto supplies have Schumacher products.
Looking for thoughts on them.
Can the two parallel wired coach batteries be effectively maintained by a single charger? What size trickle charger would work best for this? Looking at 1.5 or 3 amp.
All ideas welcome.
Thanks
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Old 12-03-2007, 02:15 PM   #2
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First winter with a motor home in Connecticut. Wish to leave batteries in so we can get away if we want to. Looks like I need a battery charger to keep the batteries conditioned. All the local auto supplies have Schumacher products.
Looking for thoughts on them.
Can the two parallel wired coach batteries be effectively maintained by a single charger? What size trickle charger would work best for this? Looking at 1.5 or 3 amp.
All ideas welcome.
Thanks
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Old 12-03-2007, 03:12 PM   #3
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We leave our MH plugged in during periods of non-use which will keep the house batteries charged We recently purchased the Trik-L-Start from IRV2 upgrades. It's simple to hook up and will keep the starting battery charged by drawing from the house batteries which will be charged as previously mentioned.http://www.rvupgradestore.com/index....ROD&ProdID=441 It's money well spent but be sure to check on the battery level monthly.
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Old 12-03-2007, 05:50 PM   #4
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Our Jamboree class c has a solor trickle charger on top of the air conditioner unit which seems to do a good job of keeping the batteries charged even in the winter and when there is less sunshine. I run the motorhome and the generator once a month just to be sure the batteries are charged and to "exercise" the moving parts and tires.
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Old 12-05-2007, 04:11 AM   #5
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As mentioned, plugging your coach in will charge the coach batteries without buying anything. However, you must be sure to monitor the water level in the batteries to assure they do not go too low. Recomend checking the level once a month.
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Old 12-15-2007, 11:28 AM   #6
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If you have time to fuss with it. Every two weeks or month, check voltage. And periodically, as you think they need it, put on the charger for a day or two (parallel is fine). I do it that way and never find much water loss, or other problem.
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Old 12-19-2007, 03:57 PM   #7
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We also leave our coach plugged in and it charges the house batteries but it does not charge the chassis battery. If your coach charger does not also charge the chassis you can either install something like the Echo-charger or Trik-L-Start and it will also keep your chassis battery charged by way of the house batteries. Another option is to install something like the Battery-Minder Plus and it will charge and maintain the house and chassis battery but would require you to connect and reconnect. Before I installed the Trik-L my BatteryMinder Plus was enough to keep the chassis battery at full charge.
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Old 12-19-2007, 06:59 PM   #8
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The BatterMinder Plus 1.3 amps is not a sealed unit. I went through two of them due to corrosion problems and finally just ask for and received my money back. The BatteryMinder people do sell a sealed unit with more amps, however, they are expensive compared to the Echo Charger and Trik-L-Start. The guy at BatteryMinder was very understanding a sent me a free desulfanator for my troubles. I chose the Echo Charger as a replacement because I have 30 amps available at my storage site.
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Old 01-13-2008, 07:20 AM   #9
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I notice that most of these products have lug terminals where you more or less "permanaent" affix to battery. My question is if the battery charge is unplugged, does this cause a drain on the battery? The Schumatic product info does not say either way but with the round lugs that go on the batt terminals I was just curious.
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Old 01-13-2008, 12:19 PM   #10
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You need a storage device and not a charger.

There are some RV converters that will do battery storage maintenance. The WFCO and PD+Chargewizard are examples.

The Battery Minder Plus is an example of a device whose primary function is battery storage maintenance.

A battery storage maintenance device does two things. One is that it keeps the batteries fully charged. The other is that is inhibits battery sulfation.

A standard trickle charger will keep the battery charged but it does not do anything special to inhibit sulfation. The WFCO and charge wizard use periodic 'equalization' charges to keep the electrolyte stirred up to inhibit sulfation. The Battery Minder plus uses an AC/RF charging 'signal' to inhibit sulfation.

I have a Schumacher charger that has a desulfation cycle that, I think, is the AC/RF signal approach. But it is not really designed to be an always on maintenance charger.
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