 |
10-12-2017, 06:51 AM
|
#1
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
Power converter charging at 250 vDC
Before heading out on our trip next week I decided to test my battery. Turns out it is completely dead. The camper has been plugged in at the house for the last month so I thought that it should have been charged.
I was able to put my battery on a battery charger in the garage and get it up to 13 volts but it has zero mca and only 36 cca. So it definitely needs replacing.
The crazy thing is that when testing the converters charging capability it tests at 251 volts dc instead of the usual 13ish volts. Something with the 8955 is screwed up.
Is there anything that can be done to fix it or does it need replaced as well? My guess is that it fried the battery.
Thanks
Jason
|
|
|
|
10-12-2017, 07:22 AM
|
#2
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
At the converter I get 13 volts so I don't know what is up
|
|
|
|
|
10-12-2017, 09:20 AM
|
#3
|
|
Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
|
It's pretty impossible for the converter to put out 251 volts DC. Are you sure it wasn't .251 VDC.
Since you get 13 VDC at the converter, I'd say the problem is the fuse/resettable breaker near the battery or the battery disconnect.
Since you don't indicate which RV or even type of RV you have, I can't tell you where to start looking for it, but it should be somewhere near the battery.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin! 
|
|
|
|
|
10-12-2017, 09:28 AM
|
#4
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
 I agree that 250 volts is impossible lol. I just replaced the resettable breakers and it appears to have fixed the problem.
Still don't know why it was reading such a high voltage
|
|
|
|
|
10-12-2017, 09:34 AM
|
#5
|
|
Senior Member
Join Date: Jan 2016
Location: x
Posts: 12,423
|
It is said that seeing is believing but I still have a hard time believing such a reading could it be the meter?
__________________
Retired Navy
Jake my sidekick (yellow Lab) 10/04 - 05/20
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho
|
|
|
|
|
10-12-2017, 09:37 AM
|
#6
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
No the meter seems to be good. I get 13.6 volts everywhere except for at the battery cable. After I changed out the switchable breakers everything seems to be fine. Getting a good 13.6 volt reading now. I have no clue how it was getting a 200+ volt reading before.
|
|
|
|
|
10-12-2017, 09:41 AM
|
#7
|
|
Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
|
Since the meter is set to 'Auto' range, it may be mV that it's reading. I can't see the range on the far right side of the display due to the glare on it.
I have a few meters that will read like that and if you aren't careful to look at the range you'll be thinking volts and it'll be reading mV.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
|
|
|
|
|
10-12-2017, 09:43 AM
|
#8
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
You know what that makes sense it is reading mV. Lol I am an idiot. Now it all makes sense. The breaker was broken so it wasn't getting any power hence the 200+ mV. I just didn't pay any attention to the mV.
Thanks everyone
|
|
|
|
|
10-12-2017, 10:09 AM
|
#9
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
 much better now! Glad that I don't have a converter to replace.
|
|
|
|
|
10-12-2017, 10:24 AM
|
#10
|
|
Site Team
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 9,850
|
I'm just glad it was as simple as replacing a breaker or fuse.
Thanks for sticking with us till the end.
__________________
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
|
|
|
|
|
10-12-2017, 10:25 AM
|
#11
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
No problem. Thanks for your help!
|
|
|
|
|
10-13-2017, 07:51 PM
|
#12
|
|
Member
Join Date: Oct 2017
Posts: 39
|
Quote:
Originally Posted by Bama Rambler
Since the meter is set to 'Auto' range, it may be mV that it's reading. I can't see the range on the far right side of the display due to the glare on it.
I have a few meters that will read like that and if you aren't careful to look at the range you'll be thinking volts and it'll be reading mV.
|
Exactly what I was thinking!
|
|
|
|
|
10-13-2017, 08:11 PM
|
#13
|
|
Senior Member
Join Date: Jun 2013
Location: CT
Posts: 306
|
Being a switching supply I would think if it went into runaway it may produce that much voltage but at uA's....
|
|
|
|
|
10-13-2017, 08:35 PM
|
#14
|
|
Senior Member
Join Date: Jan 2016
Location: x
Posts: 12,423
|
One more reason to keep my manual range. Good diagnosis BR
__________________
Retired Navy
Jake my sidekick (yellow Lab) 10/04 - 05/20
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho
|
|
|
|
|
10-13-2017, 08:38 PM
|
#15
|
|
Senior Member
Join Date: Aug 2013
Posts: 7,916
|
I had an open connection(charging wire) on a Dodge p/u break one time. Gauges went haywire and I checked the alternator output...38+ volts. Alternator man said “it full fielded”. Maybe bad connection on 120VAC to 12VDC would do similar.
__________________
2017 Puma 297RLSS
2005 Ram 2500 4X4 diesel SMOKER!!
I love puns, irony and tasteless jokes...
born in Texas.... live in Arkansas 
|
|
|
|
|
10-14-2017, 05:43 AM
|
#16
|
|
Phat Phrog Stunt Team
Join Date: Dec 2011
Location: Burton, MI.
Posts: 4,522
|
How was the water level in them, without water they will fry
__________________
Scott & Vicki
2018 Silverado 3500HD Dually 6.6L Duramax/Allison
2018 Columbus 366RL 1492 Edition
Camped 2012 19, 2013 110, 2014 129, 2015 97
2016 93, 2017 79, 2018 84, 2019 59, 2020 0,
2021 4 reserved 
|
|
|
|
|
10-14-2017, 06:35 AM
|
#17
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
The water level on my battery was fine. My guess is that the breaker/fuse had been broken for so long that the battery drained of power and now wouldnt take a charge. In May I had a VA state inspection and the battery had at least enough power to engage the brakes.
A new battery and two auto resettable breakers and everything is working as it should.
|
|
|
|
|
10-14-2017, 06:56 AM
|
#18
|
|
Junior Member
Join Date: Jun 2017
Posts: 8
|
Hi. It had to be 250 mv if it was 250volts. The battery would be boiled out and all the items that are wired in the camper to the 12 v system would be blown out and burnt
|
|
|
|
|
10-14-2017, 07:02 AM
|
#19
|
|
Senior Member
Join Date: May 2015
Posts: 201
|
Yes. It was 250 mv. I just overlooked that on my meter.
|
|
|
|
|
10-14-2017, 09:26 AM
|
#20
|
|
Senior Member
Join Date: Nov 2016
Location: Clovis CA.
Posts: 407
|
It is impossible to get 200+ volts DC from 120 vac. If NOTHING blew the most you could get would be 120....but the diods would hold it to their value or blow.......IMPOSSIBLE.
Sent from my SM-J700T using Forest River Forums mobile app
|
|
|
|
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
