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UPDATE: Hope for the Generator Ghettoes During Winter

There is a tendency to be discouraged by the noise pollution when camping in the winter. Don't be. Things are improving. Solar panels and high quality generators are becoming more common.

And yet some people still buy one of those yellow P.o.S generators from China just to save $600. What fraction is that of their total rig expense? For many RVers, it is less than 1%. Hell, that's round-off error.

For those who are burdened by the $600, consider the alternative I posted about in the tab "Almost Needing a Generator," at the top of the screen.

Regardless of the noisiness of your neighbor's generator, most of its 'on-hours' would simply disappear if he put $200 into a proper "three stage" charger, such as Iota, Xantrex, Blue Sea, Samlex, etc.

But instead, your neighbor simply pulls the electrical power cord out of the hole in the side of the RV, just as he would in an RV park, sticks an adapter on the end, and plugs it into his generator.

Then what happens?! The AC power goes from the generator to his rig's "converter/charger", which powers the DC circuits and slowly charges the rig's battery at 13.5 Volts. You can't charge a battery quickly unless you get up to 14.4--14.8 Volts, which is what would happen with a proper three stage charger. Thus most of his generator hours are wasted. 

Does anyone know what fraction of RVs come from the factory with crappy "converter/chargers" that only put out 13.5 Volts DC to the batteries? After writing this post, I bumped into an answer. See the Epilogue below.

For instance I bought a 30 Amp charger from Samlex for $200. I charge my two 6-volt GC2 "golf cart" batteries this way, on a cloudy day.  I will run it 30 minutes, and be optimistic that the solar panels will get lucky later in the day.

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Epilogue. Quartzsite is a good place to learn about these things. I was pleased to learn that the standard RV supplier of converter/chargers, Progressive Dynamics, sells a $30 optional module, with a cable and connector, that upgrades the Intelli-power 9100 series into a 4 stage charger. You just mount the little "Charge Wizard" module to a hole in a wooden panel, connect it, and push the button to go into 4 stage charging.

Hooray for them! This would be a good way for your neighbor to cut down on his hours of generator usage.

Check out the Series 9200 of Intellipower converter/chargers. It might have the Charge Wizard already built into it.   

Comments

Ed said…
"Does anyone know what fraction of RVs come from the factory with crappy "converter/chargers" that only put out 13.5 Volts DC to the batteries?"

I don't know, but would venture a guess that it is 100% UNLESS the special Option is selected. Then they will install a 'proper' one at a cost that exceeds what you could buy and install 'after market'.

I think the one I now have is not long for this world and I'll be replacing it with a 3-stage.
In your case (hooked up at an RV park), a three stage charger is not necessary; not even desirable, actually.

For boondockers, the good news is that three stage battery chargers are no longer exotic and expensive. Good aftermarket models are $200-300.
Ed said…
I have been led to believe that single stage converters don’t exercise the batteries at all when they are left on shorepower via electrical hookups, and the batteries deteriorate more quickly. That it is important for batteries to go through the Bulk and Absorb stages periodically. With my existing converter I don't think that ever happens; no Bulk and Absorb ever.