Reply
 
Thread Tools Display Modes
Old 06-15-2014, 03:04 PM   #1
Senior Member
 
Join Date: Jan 2014
Posts: 112
First dry camping excursion

We did three nights at a park with no hookups. I added 2 golf cart batteries before heading out. With all LED lighting we could probably go a week or two. The nights were so cool we had to run the furnace each morning

We finished the trip with the batteries showing 12.1 V

When we got home and plugged in the WFCO converter went all the way to 12.9v!!! It will take a month to charge at that voltage

A boondocker charger is next

Linc
__________________

__________________
missing_link is offline   Reply With Quote
Old 06-15-2014, 03:58 PM   #2
Senior Member
 
RPAspey's Avatar
 
Join Date: Jul 2008
Location: central PA
Posts: 973
Solar!!!!!!!!!!
__________________

__________________
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.
RPAspey is offline   Reply With Quote
Old 06-15-2014, 04:03 PM   #3
Senior Member
 
Join Date: Jan 2014
Posts: 112
Solar would be nice but we are generally deep in the woods. Our site this weekend had no sun exposure, much frustration for my wife!!
__________________
missing_link is offline   Reply With Quote
Old 06-15-2014, 06:25 PM   #4
Senior Member
 
RPAspey's Avatar
 
Join Date: Jul 2008
Location: central PA
Posts: 973
Dang now that's boondocking..I've been to some shaded sites but have been able to charge up the batteries enough each day to last to the next day. On those trips, we are VERY conservative with the power. Like no inverter.
__________________
2000 Cherokee 29BH with 6V batteries, LED lights & 400 watts of solar power, flipped axles and raised. 2007 Tundra 5.7L DC-LB with lots of mods. C-co, 8/158th AVN Maint.
RPAspey is offline   Reply With Quote
Old 06-15-2014, 06:37 PM   #5
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
Quote:
Originally Posted by missing_link View Post
When we got home and plugged in the WFCO converter went all the way to 12.9v!!! It will take a month to charge at that voltage. Linc
Linc, something may be wrong with your converter.

At 12.1 volts, your battery was discharged 50%. At 50% you are on the borderline between Bulk Charge Stage (14.4 charging Volts) and Absorption Stage (13.6 Volts).

12.9 volts could mean something bad is going on with either your battery or converter.

Were you using a digital voltmeter or the status lights to determine the battery voltage?

You may need to do some tests including a LOAD test on the converter to make sure it is working to Spec.
Attached Thumbnails
Click image for larger version

Name:	Charge Chart.jpg
Views:	151
Size:	33.6 KB
ID:	55327   Click image for larger version

Name:	WFCO CHarging Graph.JPG
Views:	149
Size:	72.7 KB
ID:	55328  
Attached Files
File Type: pdf TEST FOR LOAD.pdf (24.1 KB, 23 views)
File Type: pdf WFCO 8900 Troubleshooting guide.pdf (4.69 MB, 23 views)
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is offline   Reply With Quote
Old 06-15-2014, 08:14 PM   #6
Senior Member
 
Join Date: Jan 2014
Posts: 112
I installed a digital volt meter in the lid of my battery box. Should the converter go right to bulk or absorption mode or does it take a while? I only watched for 10 minutes or so after plugging in

Linc
__________________
missing_link is offline   Reply With Quote
Old 06-16-2014, 06:57 AM   #7
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
Quote:
Originally Posted by missing_link View Post
I installed a digital volt meter in the lid of my battery box. Should the converter go right to bulk or absorption mode or does it take a while? I only watched for 10 minutes or so after plugging in

Linc
Which stage the converter goes to depends on the battery voltage. If the battery has less than 12.1 volts it will go to Bulk for 4 hours; then absorption for 48 hours; then float.

The converter may be being overloaded by a 12 VDC load in the camper which can pull down the available voltage to charge the battery. Your converter can only supply its rated load (mine is 55 amps) and as the amp demand goes up, the generated voltage decays.

Turn off all 12 VDC items in the camper (including the climate control in the fridge), lights, and the inverter powered items and see if your voltage recovers. If not, you could have blown a diode in the rectifier bridge.
Attached Thumbnails
Click image for larger version

Name:	03265.png
Views:	140
Size:	11.6 KB
ID:	55349   Click image for larger version

Name:	peak_value.gif
Views:	135
Size:	9.6 KB
ID:	55350  
Attached Images
 
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is offline   Reply With Quote
Old 06-16-2014, 01:04 PM   #8
Senior Member
 
Join Date: Jan 2014
Posts: 112
I stopped and checked this morning. After 24 hours the battery voltage is at 13.7 so it seems to be in absorption mode now

I will have to try load testing but with all led lights I'm not sure how I would ever get a 55 amp draw using every light, fan and furnace in the trailer

Thanks for the help

Linc
__________________

__________________
missing_link is offline   Reply With Quote
Reply

Tags
camping, dry camping

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:33 AM.