Good Sam Club Open Roads Forum: Class A Motorhomes: Battery questions
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down home

south

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Posted: 10/13/20 04:54pm Link  |  Quote  |  Print  |  Notify Moderator

I don't have AGMs but the lead acid Trojans on board when first installed required the generator running several hours on the road to get to just float charging.
Just plugged in wouldn't do it. Our coach is a 2005 though.

Gjac

Milford, CT

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Posted: 10/15/20 08:11am Link  |  Quote  |  Print  |  Notify Moderator

wa8yxm said: Years ago there was a converter. Magnetek 6300, among others, that was very popular in RV's.. this used a "Ferroresonate" transformer to more or less control the voltage out.. Not all that good at it.. IT was a converter/power supply putting out raw unfiltered rectified AC for lights up to around 35 amps and about 3-5 amps DC to the batteries, which filtered it, for loads that like a clean diet. (Radios for example)
Voltage regulation was not that great and when the batteries were "Full up" It kept right on pushing (Overcharging) and woudl often boil batterie dry in 1-3 weeks.
I have heard this said for years on here and for the life of me I never understood this logic. I still have the old Magnateck 950 and it has never charged more than 13.6 volts when new and now charges at 13.2 volts after 25 years of use. How does this voltage boil the batteries dry in 1-3 weeks?

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