Springtime Power Surprise

Springtime Power Surprise

It was a nice spring day in March 2008.  I went out and plugged in The Freedom bird and turned on all the lights and everything to see if things would work.  I also cleaned the mud daubers out of the furnace.  It worked great.
Spring Check
The lights started to go dim.  I looked for the converter.  This Motorhome had a 40 amp input.  Why were the lights going dim?  I opened the door to the converter and found this.
old Power Supply
You can see that there is a 10 amp battery charger connected with a 35 amp power converter.  That would be a total of 45 amps of available dc power.  The only problem is that with  dc power supplies is that the higher voltage power supply will take over.   The battery charger put out voltage at 14.2 volts and the converter put out 13.2 volts.  The battery charger took over providing only 10 amps of available power.  That's why the lights went dim.  If they both supplied power at the same voltage there would have been no problem.  I thought at first that the converter did not work.
New Power Supply

I replaced both and intalled this new light weight 45 amp power supply.  Problem solved.