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waxerk5's avatar
waxerk5
Explorer
Apr 11, 2017

2011 Fleetwood Fiesta WFCO 9865 Upgrade Options

We recently purchased this class A from a dealer used about a week ago. I've been going through things more detailed and I found that the house batteries are from 2013, they are Centennial GC2 6v (pair of 2) and they have swollen sides.

I'm currently looking for new batteries and I'm liking the Trojan 125's.. but I'm concerned that our OEM converter may not be up to the task of properly charging and monitoring the Trojans. From what I've read on the forums, the WFCO's aren't good with 6v batteries, so I'm looking to upgrade the converter to something more modern.

Current Converter: WFCO 9865 (65amp)

Looking at the Progressive Dynamics 9270C (70amp)

Questions:
1) Will it be OK to increase the amps like that w/o upgrading any wiring?

2) Planning on future install of flexible solar panels, will this converter cause any issues with that?

3) Any other suggestions??


Thanks for any advice/alternatives offered


Steven
Class A
  • waxerk5's avatar
    waxerk5
    Explorer
    Apr 11, 2017
    Confusion cleared up!!

    I spoke with Randy at bestconverter.com and explained what the RV currently has and he suggested the following:

    Boondocker 1265C and the Trimetric 2030RV monitor. He explained that the Boondocker has better value to the money and will be a perfect upgrade for me. The Trimetric monitor is the latest one he says is very popular that will work great with my setup.

    I also have dual Trojan 125-C's on order.
  • waxerk5's avatar
    waxerk5
    Explorer
    Apr 11, 2017
    Ok now I'm more confused.. My WFCO 9800 series manual states that there are 3 charging modes.

    Float Mode = 13.2 Vdc
    Absorption Mode = 13.6 Vdc
    Bulk Mode = 14.4 Vdc

    The switching between modes is automatic and sensed by the converter on what condition the battery is at and needs for the charging.

    With that Bulk Mode, it is just below the voltage that the Progressive Dynamics converter has on bulk mode and looks to be just fine for the Trojan's.

    Progressive Dynamics Converter:
    Float Mode = 13.2 Vdc
    Normal (absorption) = 13.6 Vdc
    Bulk Mode = 14.8 Vdc

    So there is a 0.4 increase on the bulk mode only. Would this be significant enough to warrant the upgrade?

    Any thoughts or suggestions are appreciated.

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