Charging the Battery - Page 2 - Fiberglass RV

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Old 09-18-2006, 12:51 PM   #15
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Name: Brian
Trailer: Boler (B1700RGH) 1979
Posts: 5,000
A post in Trailer Life Magazine's Open Roads Forum suggested that BW Manufacturing became MagneTek then Parallax, so that's the series of hardware. That post gives substantial technical detail, but I have no way to know if it is accurate, or if it really applies to Christine's unit.

The converter in my Boler does not include a charger, so I know that I can't hurt the battery with it by overcharging . The optional charger (which I don't have) is apparently a primitive unit which does risk overcharging if left connected, so instead I charge with a state-of-the-art Vector brand charger, and also have a float-type maintainer, both of which are safe for me to hook up and forget (not that I would forget... very often )

In contrast, the description "Power Converter and Charger" means that Chistine's unit does include a charger, so it's not in the simple-but-safe category; the remaining question is how "smart" is the charger, and for that a model number would lead to the right document from Parallax - or you can just assume that it might not handle maintenance charging well, and avoid leaving the converter/charger on for very long periods.

I have yet to see a truly sealed flooded-cell battery, and unless you paid a big premium, you have a normal flooded-cell battery, not a gell-cell or AGM. The caps are still there, and can still be removed (to check fluid level) by prying with something like a screwdriver, after carefully cleaning any junk from around them to avoid contamination.

1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
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Old 09-19-2006, 09:38 AM   #16
Trailer: 2005 19 ft Scamp 19 ft 5th Wheel
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Thanks Brian, we did indeed get the lid off and check the cells which were fine. Most re-assuring. I'll see if I can get the model#

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Old 09-19-2006, 03:15 PM   #17
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Go to wallyworld and purchase a bettery hydrometer (Less than $10 US) and check each cell. You may have a dead or marginal cell.

If Wally does not have one, go to Advance Auto.

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