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Old 05-01-2016, 02:56 PM   #11
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Yes it can.
I don't have house batteries yet but am wired and ready for them.
I bought a charger at auto zone for 50-60$ and have had no problems.
It is a Schumacher se5212a automatic with 50a start/10amp fast charge/2amp slow charge.
I can hook up to my house wiring and run everything 12v I installed and the charger adjust to the load as I turn lights and fans off and on and I can turn everything off and the charger will shut itself off until I turn even a single bulb on and it is free to move as needed to charge the start batteries as needed.
Last camping trip we did I had the alligator clamps connected to the house wiring battery post and covered all in some real good electrical tape. After spending a week we Went to leave and the start battery was dead. Not a big deal because I had a charger that would do the job except for the real good electrical tape I had used? 20-min. Just to get it off and started and down the road 5-min later.
I have also hooked this charger up to the start batteries on 10amp and got caught up in other stuff. Neighbor needed help,wife needed help in the garden, kids are hungry and the foods ready to grill, as soon as you can get the grill going,eatin supper and falling asleep. I woke up at 3 in the morning saying oh crap and ran out the door to find the charger had regulated itself to the charge of the batteries and shutoff to protect my dumb but. I am sold and if I decide I want a second this might be it but I want to put it through a bigger longevity test as a float charger but so far it has been admirable.
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Old 05-01-2016, 04:05 PM   #12
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Year: 1991
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That's interesting. You've got three batteries in parallel for your start battery? That works.

.
Yes, I have an engine coolant heater that runs a pump off of the battery without the engine running and a drive line retarder that uses a lot of battery power.
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Old 05-01-2016, 04:36 PM   #13
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I thought engine coolant heaters ran from shore power? That shouldn't run off your battery.
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Old 05-01-2016, 06:28 PM   #14
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The block heater has an outlet that you plug in. The coolant heater runs off of the batteries.
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Old 05-01-2016, 06:54 PM   #15
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I'm confused. You're heating the coolant? I think I'm missing an important piece of information somewhere. Is this the same coolant that goes through the block heater?
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Old 05-01-2016, 08:57 PM   #16
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I wonder if he is talking about the coolant heater boost pump?

I knew a guy once that plugged his blck heater into shore power at night (which is effectively just a coolant heater).. he also had a small battery charger on the same plug which would energize the coolant boost pump.. so all of his heater cores in the bus would stay warm.. . come out on an icey cold morning, start the bus and have instant heat because all ofthe loops were warm...

the block heater ran off of 110 volts, the little pump ran off of 12 volts..

-Christopher
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Old 05-01-2016, 10:18 PM   #17
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Sounds possible, but if I was going to heat liquids I'd have a warm floor and not be using the old bus heater. Keep my feet warm and I'm good to go.
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Old 05-01-2016, 11:23 PM   #18
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My money says the battery powered coolant heater is a Webasto or Espar. The heat comes from diesel, but the battery run the control circuit and the circulation pump.
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Old 05-02-2016, 12:17 AM   #19
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My money says the battery powered coolant heater is a Webasto or Espar. The heat comes from diesel, but the battery run the control circuit and the circulation pump.
My Line Setting Ticket says there is a Phillips engine block heater 120V-125ow. I have a plug in the front bumper for this.


I haven't been able to find any documentation on the coolant heater but I still have a box of records to look through. The head mechanic at the bus barn mentioned that they installed it after they bought it. It runs off of deisel and has a fan that blows the exhaust out the side of the bus and I think a pump to pump the coolant through the engine and to the back heater in the bus.
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Old 05-02-2016, 12:51 AM   #20
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I have never heard of that kind of heater. So that apparently can be set to run and keeps the bus warm?
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