Forum Discussion

joeshmoe's avatar
joeshmoe
Explorer
Aug 29, 2016

Onboard Charger vs. Smart Charger

So I have the standard WFCO 8900 series charge/converter (I believe it's the 45 amp model). However, I have a "smart" charger that I prefer to use. It just seems to do a better job charging and maintaining.

Can I bypass the WFCO when I'm using the Honda 2K and just use the smart charger directly to the batteries so as to not suck power from the generator when running the A/C? The generator noticeably kicks up and sometimes goes into overload mode when the WFCO charger tries to start charging the batteries.
  • BFL13's avatar
    BFL13
    Explorer II
    Aug 30, 2016
    To be clear the WFCO will not "shut down", it stays "on" still drawing some power, but it will not be supplying any amps once the portable gets the battery voltage (as seen by the WFCO after voltage drop along the wires to it) up past the WFCO's voltage. (which can be 14.4 if it is working right as installed)

    You can also use your battery disconnect switch to isolate the battery bank while the rig is plugged into the generator so the WFCO supplies 12v to the rig. Then also run the portable clamped to the battery bank to recharge that.(portable also plugged into generator)

    You still have the management of the generator's output to figure out, but you can wait till later to recharge the isolated batts but still have 12v for the rig..

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,190 PostsLatest Activity: Jan 19, 2025