Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-05-2016, 09:05 AM   #1
Winnebago Camper
 
navcom48's Avatar
 
Join Date: Mar 2009
Location: The Villages, FL.
Posts: 13
Where's the battery shunt?

I have a Xantrex Digital echo-charger I want to install on my Aspect 30J, to keep the chassis battery charged while the rig is not in use. Installation is pretty straight forward but the echo-charger manual says to connect the ground wire to the negative or load side of the shunt if a battery monitor is used. I am assuming that the "battery charge meter" on the ONEPLACE panel constitutes a battery monitor.

So the question is; where do I find the battery shunt? Anybody know?
__________________
AJ
2015 Winnebago Aspect 30J
VW Beetle toad W/Acme dolly
navcom48 is offline   Reply With Quote
Old 03-05-2016, 09:21 AM   #2
Winnie-Wise
 
BFlinn181's Avatar
 
Join Date: Jan 2012
Location: Cincinnati
Posts: 486
If you use Google to search for 'battery shunt' you'll see images of typical shunts. If you have one already, you'll be able to figure out where to attach the negative wire. A shunt is a special resistor that proportionally reduces voltage that is then read by a meter. Your directions are to connect the charger to the terminal of the shunt before the voltage is reduced for the meter.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 03-05-2016, 09:25 AM   #3
Winnebago Master
 
Join Date: Dec 2005
Location: Buxton, North Dakota
Posts: 1,037
The Echo should have come with a shunt or if not you would need to purchase one. The shunt connects directly to the negative terminal of the battery and all loads connect to the load side of the shunt. Just remove the negative connections from the battery, connect the battery side of shunt to negative terminal and connect negative cables just disconnected from battery to load side of shunt.
__________________
2003 Winnebago Adventurer 38G F53/ V10 605 watts of Solar
1999 Winnebago Brave 35C Handicap Equipped
F53/V10
1999 Jeep Cherokee & 1991 Jeep Wrangler Renegade
John Hilley is offline   Reply With Quote
Old 03-05-2016, 09:53 AM   #4
Winnebago Owner
 
Join Date: Jul 2014
Posts: 200
The assumption that your battery charge meter has a shunt could be wrong.

If it shows DC amps in or out it will have a shunt. If it shows volts only, probably not.

No matter, just hook the negative to the negative post of a battery.
twinboat is offline   Reply With Quote
Old 03-05-2016, 10:03 AM   #5
Winnie-Wise
 
BFlinn181's Avatar
 
Join Date: Jan 2012
Location: Cincinnati
Posts: 486
I think Twinboat is correct, the function of your battery charger shouldn't be affected by a shunt. Hooking it directly to the battery would be the way to go. I went to the Winnebago site to see what a ONEPLACE is, looks like just a digital display, but I assume it has different capabilities according to what equipment your RV has. Can't tell if the battery level function shows amps or not, as Twinboat says, if it only shows voltage you wouldn't have a shunt built in to it.
__________________

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 03-05-2016, 11:20 AM   #6
Winnebago Master
 
grtharris's Avatar
 
Join Date: Apr 2003
Location: Skiatook, OK
Posts: 1,408
navcom48, I just looked at the online owners guide and it did not mention a shunt, from the guide.
" Connect from the echo-charge:
• Ground wire (black) to the negative battery ground.
• Starter Battery wire (red with yellow trace) to the starter battery
positive (+ red) terminal. A 20 amp fuse in this line protects the wire.
• House Battery wire (+ red) to the house battery bank positive (+ red)
terminal. A 20 amp fuse in this line protects the wire."
Winnebago does not use a shunt on there monitoring system.
Xantrex does use a shunt with there battery monitor systems.
__________________
Grant & Pat
2014 Adventurer 35P
2012 Jeep Wrangler Rubicon
grtharris is offline   Reply With Quote
Old 03-05-2016, 11:31 AM   #7
Winnebago Camper
 
navcom48's Avatar
 
Join Date: Mar 2009
Location: The Villages, FL.
Posts: 13
Thanks for all the informative replies. BFlinn181, your correct the ONEPLACE is a multifunction display that shows a number of things such as holding tank levels, LP levels, etc., and battery voltage only, no amps. So from what I've learned here, I'd say there is no shunt on this battery setup. So can i hook up the negative side of the charger to the ground point on the frame used by the battery or, as suggested, to the negative battery terminal?

Again, thanks gentlemen for the education and advise.
__________________
AJ
2015 Winnebago Aspect 30J
VW Beetle toad W/Acme dolly
navcom48 is offline   Reply With Quote
Old 03-05-2016, 11:37 AM   #8
Winnebago Camper
 
navcom48's Avatar
 
Join Date: Mar 2009
Location: The Villages, FL.
Posts: 13
grtharris, I call tech support at Xantrex and they said if I had a "battery monitor system" then there should be a shunt and that is where I should hook up the negative. But, from what I'm learning here my winne system is not a true monitor system since it only shows volts.
__________________
AJ
2015 Winnebago Aspect 30J
VW Beetle toad W/Acme dolly
navcom48 is offline   Reply With Quote
Old 03-05-2016, 11:45 AM   #9
Winnebago Owner
 
Join Date: Sep 2012
Posts: 151
Quote:
Originally Posted by BFlinn181 View Post
If you use Google to search for 'battery shunt' you'll see images of typical shunts. If you have one already, you'll be able to figure out where to attach the negative wire. A shunt is a special resistor that proportionally reduces voltage that is then read by a meter. Your directions are to connect the charger to the terminal of the shunt before the voltage is reduced for the meter.
Close but no cigar. A shunt is a very low value precision resistor that produces a voltage drop proportional to the current flow. They are typically 50 millivolts @ rated current. You can calculate the shunt resistance by dividing 50 millivolts by the shunt rating.

The meter is actually a 0-50 millivolt meter calibrated in current on the dial. Using a high impedance voltmeter to indicate the current that way allows for good results from poor wiring or long runs to the indicator.

Depending on the metering shunt placement in the circuit can be critical. The old analog meter across a shunt was not location specific. The current crop pf digital indicators use a reference to ground so the shunt has to be in the ground lead.
nothermark is offline   Reply With Quote
Reply

Tags
battery


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery Problems/Battery Test In Situ? jrpend Electrical | Charging, Solar and Electronics 10 04-26-2016 02:42 PM
Chassis battery issue/Battery boost Ranger Rick Electrical | Charging, Solar and Electronics 8 02-21-2012 10:21 AM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:26 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.