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Old 03-26-2012, 10:53 AM   #11
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Quote:
Originally Posted by Snake Plissken View Post
Just a question...wouldn't this be seen by more people in the Boondocking section?

https://www.jaycoowners.com/forumdisplay.php?f=12
Good suggestion, Snake... I will move it there.
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Old 03-26-2012, 11:03 AM   #12
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Yep - there are 2 parts too it. The 2 stage converter is a slow charger to begin with, then couple that with undersized/over length wire and you end up with a LONG charge time.

-Chak
My TT has a Progressive Dynamics PD4500 Power center, which has 3 stage charging. I've monitored the charging voltage in the past, at the converter end, and most of the time it's in normal mode (13.6 VDC). It takes a long day of running the generator to bring the charge up enough to make it to storage mode (13.2 VDC).

Quote:
Inteli-Power 4500 Series models can recharge the battery to 90% in 2-3 hours using our patented Charge Wizard technology.

The built-in Charge Wizard automatically selects one of three operating modes: BOOST, NORMAL, STORAGE.

BOOST Mode - Indicated by green LED remaining on. The output voltage is 14.4VDC to rapidly recharge the battery up to 90% of full charge.

NORMAL Mode - When the battery is between 50% and 90% charged, the green LED will flash once per second. When the battery has reached 90% of full charge the green LED will flash 2 - 3 times per second. In this mode the output voltage is 13.6VDC and the converter is safely completing the charge of the battery.

STORAGE Mode - Indicated by green LED flashing every 6 - 8 seconds. In this mode the output voltage has ben lowered to 13.2VDC, the RV battery is fully charged and the converter is maintaining the charge.
Source: http://progressivedyn.com/all_in_one_pd4500_1.html

Bill
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Old 03-28-2012, 01:03 AM   #13
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Get the Charge Wizard for the PD converter (cheap), then you can not only tell what mode it is in, but force it to a particular mode.

When it is in boost mode (14.4 I think) you can measure at the batteries and know if you have this issue...

-Chak
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Old 03-28-2012, 06:49 AM   #14
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Check your converter model # and you may find you already have the Charge Wizard. I know ours does and it's a 2010.
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Old 03-28-2012, 09:36 PM   #15
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Yep - if it has the built in wizard, pick up the pendant that lets you not only see what mode it is in, but change the mode at will. Then you can force it into boost and see how much voltage you have at the batteries.

That 4500 of Bill's looks nice - all in one place with built in wizard and pendant. Cool. If only my power panel was closer to the batteries I would have done something like that!

-Chak
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Old 03-29-2012, 07:46 AM   #16
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I have a hard wired inverter in my unit that has three digital readouts for voltage in, out and left. I like this feature better than the stock status since it provides an accurate voltage readout rather than the 1/4 increment lights. I can quickly see what the input is this way without having to read the blinking lights mode.
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Old 04-04-2012, 08:34 PM   #17
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Nice write-up. I just purchased a new to me 2010 Jayco 17z. I have not used or tested anything yet, however I noticed the same as you mentioned, the converter/charger is in the rear & the battery is all the way up on the tongue. At this point I don't know the type of charger or gauge of cable used but I will be checking & adjusting this as need be. I'm hoping to do a dual battery system. I'd like to move the single 30lb propane tank forward on the tongue to where the single battery is & then in the wider space between the A-frame behind the propane tank, make a new shelf & box to fit 2 batteries. I have to be careful considering the GVWR of the 17z.

I did notice in your write up you said "I’m not clear why they call the Chargers in RV’s Converters" but then below that you said "It takes the 120V AC household power from your plug in and converts it into nice, battery friendly 12V DC power"

You answered your own question. They perform 2 tasks, converting AC to DC & sending a DC charge to the batteries. I guess primarily it's a converter & secondly it's a charger so they just picked one & called it a converter.

But great job on your research & willingness to share this knowledge with others. Something to add to your write up eventually would be converting DC to AC using an inverter. Many people aren't aware of the draw this creates on batteries because when converted, 1A AC = Approx. 10A DC. Don't take long to drain a couple batteries.

Here is a post where I was trying to help someone out with this very issue. https://www.jaycoowners.com/showthread.php?t=6378&page=2
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Old 04-11-2012, 10:43 PM   #18
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Thanks for the feedback guys.

3'senough - Yes, the built in guage is next to useless. For now I'm using my old Fluke digital but will be installing something for battery checking/monitoring.....just not sure what yet.

cablerum - good idea on inverters. I don't use them much myself, although did have a AC 40W heat blanket for my wife this last weekend that worked just fine.

Just for all - just got back from a 3 night stay in the mountains. Temps at night ran as low as 25F and we kept the heat on @ 60F while sleeping and 70F when awake. Day-times were warm and the furnace wasn't running Took showers and used LED lights liberally. My 2 x 6V Engergizers read 12.3V right before I hooked up to haul her home. I still had 70% battery left!! I'm really excited about this result. Also, once home they were back to 90% in just over an hour - at which point the converter dropped down to slow charge for the last 10%. I'm calling it a success!

I'll get back to the blog all - I promise!

-Chak
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Old 04-12-2012, 05:50 AM   #19
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That's great results for the 2x6 Energizers, Chak.

Here's a gauge you may want to consider:



http://www.bestconverter.com/Trimetr...tor_p_314.html

You will need a shunt and cable so shop around.
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Old 04-12-2012, 12:08 PM   #20
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My TriMetric Battery Monitor install: https://www.jaycoowners.com/showthrea...ight=trimetric

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