I have a 2004 Tiffin Phaeton and recently noticed my four 6 volt house batteries were always reading low even after hooked to shore power or generator but after a long drive they were back in the green. I finally had a tech look at it and he tells me the charger is only putting out 12.8 volts where it should be putting out between 13.6 and 14.2 and that I need to replace the Xantrex 458 charger converter. I am assuming he is right abotu this but just wanted to discuss it with this board to see what your suggestions are and also should I go back with Xantrex or is there a better option ? The good thing about if I go back with the same Xantrex unit is I will be able to use the same control box up front from the old unit I assume.

I would believe the charger is repairable, but that might be non-economical. This might be good time to upgrade. I have inverter/charger that gives me 2600W of charging power for my big battery bank. That come handy from time to time while fully automatic operation is very convenient.

Commerce wrote:I have a 2004 Tiffin Phaeton and recently noticed my four 6 volt house batteries were always reading low even after hooked to shore power or generator but after a long drive they were back in the green. I finally had a tech look at it and he tells me the charger is only putting out 12.8 volts where it should be putting out between 13.6 and 14.2 and that I need to replace the Xantrex 458 charger converter. I am assuming he is right abotu this but just wanted to discuss it with this board to see what your suggestions are and also should I go back with Xantrex or is there a better option ? The good thing about if I go back with the same Xantrex unit is I will be able to use the same control box up front from the old unit I assume.The voltage put out by any modern 3 stage charger will very depending on the state of charge of the batteries. With discharged batteries the voltage will start high maybe as high as 18 volts on some newer chargers and go down in current and voltage as the charged state of the batteries increases. So I don't know if he is right or not. I have heard a lot of good things about Magnum inverters/ chargers.

If the inverter side still works you could just add a converter to charge the battery.

Hi,I'd add a good converter and keep the 458 as an inverter.

Our Zantrax did the same thing, replacing the mother board did not help.we upgraded to the Magnum new error pure sign wave

Xantrex Inverter/Charger | Good Sam Community

Tom_Barb
Explorer
Nov 12, 2015
Our Zantrax did the same thing, replacing the mother board did not help.

we upgraded to the Magnum new error pure sign wave
pianotuna
Nomad III
Nov 12, 2015
Hi,

I'd add a good converter and keep the 458 as an inverter.
time2roll
Nomad
Nov 12, 2015
If the inverter side still works you could just add a converter to charge the battery.
gemert
Explorer
Nov 12, 2015
Commerce wrote:
I have a 2004 Tiffin Phaeton and recently noticed my four 6 volt house batteries were always reading low even after hooked to shore power or generator but after a long drive they were back in the green. I finally had a tech look at it and he tells me the charger is only putting out 12.8 volts where it should be putting out between 13.6 and 14.2 and that I need to replace the Xantrex 458 charger converter.

I am assuming he is right abotu this but just wanted to discuss it with this board to see what your suggestions are and also should I go back with Xantrex or is there a better option ? The good thing about if I go back with the same Xantrex unit is I will be able to use the same control box up front from the old unit I assume.

The voltage put out by any modern 3 stage charger will very depending on the state of charge of the batteries. With discharged batteries the voltage will start high maybe as high as 18 volts on some newer chargers and go down in current and voltage as the charged state of the batteries increases. So I don't know if he is right or not. I have heard a lot of good things about Magnum inverters/ chargers.
Kayteg1
Explorer II
Nov 12, 2015
I would believe the charger is repairable, but that might be non-economical.
This might be good time to upgrade.
I have inverter/charger that gives me 2600W of charging power for my big battery bank.
That come handy from time to time while fully automatic operation is very convenient.

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