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Old 11-14-2013, 05:44 PM   #1
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What is the recommended replacement converter? My 12V lights go bright & dim. The converter is running off/on when running only 2 lights, never did that before. House batteries are going on 7 years old & I add water regularly. My thoughts are to replace batteries & converter at same time. The converter is a WFCO 9800 series & I don't know much about the system. Some have suggested replacing with a Intellipower 9260.

Any input would be appreciated.

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Old 11-14-2013, 05:56 PM   #2
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In any case, the converter must be sized to match the capacity of your battery bank.

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Old 11-14-2013, 06:16 PM   #3
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I suggest you replace batteries first and see if the bright/dim is still present. Could be 7 yr old batteries just aren't holding the charge so the converter is cycling charging modes. The need to add water does point to overcharging, so replacing converter/charger still would be a good idea. With all that outgassing of the batteries, have you cleaned all cable connections too?

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Old 11-14-2013, 06:26 PM   #4
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I only have 2 Trogin 6V house batteries.
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Old 11-14-2013, 06:28 PM   #5
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I keep the cables & post cleaned, plus all connections are coated with dielectric grease.
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Old 11-15-2013, 11:08 AM   #6
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Change the batteries first to see if the problem goes away. There may not be anything wrong with the converter/charger. However, it is a good idea to upgrade to newer technology, the Intellipower 9260 is an excellent choice for your two battery system. Since you need to add water frequently to the batteries indicates they are not coming up to full charge and the charger is always in charge mode.

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Old 11-15-2013, 11:30 AM   #7
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  • Check connections
  • Check converter output
  • Check batteries
  • Replace batteries
  • Then if problem still persists, which I don't think it will, replace the converter
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Old 11-16-2013, 01:23 PM   #8
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First Birght/dim/bright/dim is more likely the batteries than the converter....

That said if I were replacing a converter

Progressive Dynamics Intellapower 9200 (92##)

To figure out which 9200 you need.. Figure out how much battery you have.. For example

a Pair of GC-2 230 amp hours

A group 31, 130

Group 29, 100

(I have 1 pair plus 3 29's so that's 530 amp hours)

Multiply by 0.30

Ok, so the 3 are added after market,, They put a 9180 with wizard in my rig (Equal to the 9280 which has the wizard built in).

And that's how you do it

Pair of 24's (150 amp hours) gets a 9245.

Pair of Group 31's 9260

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