Reply
 
Thread Tools Display Modes
Old 10-30-2015, 08:56 AM   #31
Senior Member
 
Wolverine 1945's Avatar
 
Join Date: Jul 2014
Location: SouthWest Michigan
Posts: 3,696
Quote:
Originally Posted by MarsMan View Post
They could be. Some people look for individual caps when determining if maintenance free. My batteries have a rectangular block of plastic perhaps 3x 5 inches and it covers 3 cells.
Is that like the back half of the batteries,,, I will have to look again,,,
I did not see a way to open !!!
Thanks for your reply !!!
__________________

__________________
Wolverine 1945 is offline   Reply With Quote
Old 10-30-2015, 09:59 AM   #32
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,710
Quote:
Originally Posted by dukeboone View Post
I performed a couple of investigative tests today. I am plugged into shore power and made a mental note of the read out on my Progressive Industries EMS-HW30C remote which was indicating a 1A draw. I turned on the headlights and the read out changed to 7A. This appears to indicate that the chassis is receiving current from the shore power.

Subsequently I connected my multi-meter to the "jump" leads under the hood while I was connected to shore power and the voltage read out was 13.19v. I then disconnected the shore power and repeated the test and the voltage read out was 12.8v.

My conclusion is that it does seem true that the shore power connection will indeed provide current to the chassis battery. So it appears that leaving the MH plugged into shore power will maintain both the coach batteries and the chassis battery. Therefore it seems this just leaves the argument as to whether it is better to disconnect battery leads and let the batteries sit over winter, or rather leave it all plugged in to maintain the batteries and periodically check water levels.

I do intend to check water levels and periodically exercise the generator and in my case the MH is stored in a garage that is heated to 45F read by a thermostat at eye level by a gas furnace that is 7'8' above the height of the MH, so arguably the ambient temperature is likely closer to 50F in the garage. This is required because the garage has a fire suppression system (water lines) that need to be conditioned so they don't freeze in cold weather.

Great info - thanks. Obviously the circuit minder is quite smart (it has likely gotten smarter over the years) if it allows shore power to the chassis battery but will not allow the coach when offline to drain the chassis battery leaving us potentially stranded (if that happened, the coach batteries would have been drained too leaving the generator as the last hope).

As far as storage, you have nothing to worry about. Ours will be left outside without shore power in temps that will range from +10-25 to -20-30. Our dealer assures us if we visit it and run the generator for two hours once per month everything will be fine. That is what they do on their lot, and they must have at least $10-20M of inventory.
__________________

__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 10-30-2015, 10:09 AM   #33
Senior Member
 
Wolverine 1945's Avatar
 
Join Date: Jul 2014
Location: SouthWest Michigan
Posts: 3,696
Quote:
Originally Posted by MNtraveler View Post
Great info - thanks. Obviously the circuit minder is quite smart (it has likely gotten smarter over the years) if it allows shore power to the chassis battery but will not allow the coach when offline to drain the chassis battery leaving us potentially stranded (if that happened, the coach batteries would have been drained too leaving the generator as the last hope).

As far as storage, you have nothing to worry about. Ours will be left outside without shore power in temps that will range from +10-25 to -20-30. Our dealer assures us if we visit it and run the generator for two hours once per month everything will be fine. That is what they do on their lot, and they must have at least $10-20M of inventory.
That maybe a very good idea,,, but Ill bet most dealers do not do that !!!
__________________
Wolverine 1945 is offline   Reply With Quote
Old 10-30-2015, 10:33 AM   #34
Member
 
Join Date: Aug 2014
Posts: 69
Quote:
Originally Posted by MNtraveler View Post
As far as storage, you have nothing to worry about. Ours will be left outside without shore power in temps that will range from +10-25 to -20-30. Our dealer assures us if we visit it and run the generator for two hours once per month everything will be fine. That is what they do on their lot, and they must have at least $10-20M of inventory.
the Sprinter Diesel & alternator will do a better & quicker job, just remember to depress the throttle ( "gas" pedal ) lightly to maintain approx. 1000 RPM

the 3-5 minutes it takes to do this uses an almost imperceptible amount of fuel over the 3 to 5 times this needs to be done over the winter months

I've done with both my previous 5-cyl & last winter with my current 6-cyl 24S, never seen the need to disconnect any battery

I do wait a few seconds at the switch "on" position before going to "start" to allow oil to get pumped throughout the engine. This will also heat the DEF & fuel tanks and keep all systems in good shape.
__________________
_________________
2014 MBS Solera 24S
ipolyihh is offline   Reply With Quote
Old 10-30-2015, 11:03 AM   #35
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,710
Winter Storage MBS chassis battery

Thanks! (Oh, we have to run the generator anyway to keep it up, but perhaps not as long if the chassis charges up. I'll use the house battery charge indicator to test the chassis charging ability the first time around.)
__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 10-30-2015, 11:07 AM   #36
Senior Member
 
MNtraveler's Avatar
 
Join Date: Oct 2015
Posts: 1,710
Quote:
Originally Posted by Wolverine 1945 View Post
Is that like the back half of the batteries,,, I will have to look again,,,
I did not see a way to open !!!
Thanks for your reply !!!

On ours the cap is under the holding strap - very hard to get at! The caps are tight and you may need a flat screwdriver to GENTLY pry the cap open. Beware of splashing just from removing the caps. You may want to wear gloves or be ready to rinse off quickly. Ours splashed immediately.
__________________
2016 Forester 2401R
MNtraveler is offline   Reply With Quote
Old 10-31-2015, 08:04 AM   #37
Senior Member
 
Wolverine 1945's Avatar
 
Join Date: Jul 2014
Location: SouthWest Michigan
Posts: 3,696
Quote:
Originally Posted by MNtraveler View Post
On ours the cap is under the holding strap - very hard to get at! The caps are tight and you may need a flat screwdriver to GENTLY pry the cap open. Beware of splashing just from removing the caps. You may want to wear gloves or be ready to rinse off quickly. Ours splashed immediately.
Thanks for the advice,,, I have not looked again yet,,, but I will as soon as I have time !!! The batteries sure looked like Maintenance free batteries ???
I did not know any one even made Batteries now a days that were not Maintenance Free ???
Thanks Again !!!
__________________
Wolverine 1945 is offline   Reply With Quote
Old 11-01-2015, 11:53 AM   #38
Senior Member
 
Join Date: Mar 2014
Posts: 1,748
Follow up on my test. Put the charger on the coach batteries (all are reading 12.7v)tested chassis bat (also 12.7v) selected charger to start voltage output and took reading on chassis bat. Voltage was reading sporadic, fluctuating up and down. So, test inconclusive, but voltage was passing through the BMC.
__________________
Still Kickin is offline   Reply With Quote
Old 11-01-2015, 12:04 PM   #39
Senior Member
 
MarsMan's Avatar
 
Join Date: Jul 2015
Location: Maritime Provinces
Posts: 238
Quote:
Originally Posted by Still Kickin View Post
Follow up on my test. Put the charger on the coach batteries (all are reading 12.7v)tested chassis bat (also 12.7v) selected charger to start voltage output and took reading on chassis bat. Voltage was reading sporadic, fluctuating up and down. So, test inconclusive, but voltage was passing through the BMC.
Hey SK

Interesting. I am going to try this on mine later this pm. I plan to leave the headlights on for 30 min or so and see what happens when the chassis battery is definitely in a partially discharged state
__________________
MarsMan

2015 Coachmen Prism 24J MBS
USN-R '01-present
MarsMan is offline   Reply With Quote
Old 11-01-2015, 12:23 PM   #40
Senior Member
 
Join Date: Mar 2014
Posts: 1,748
Sounds good. I will follow up with a test during winter where I store it. Always leave a float charge on the coach bats. This year, I will test the chassis bat during the winter, to see if it loses voltage, or maintains full charge through the BMC.
__________________

__________________
Still Kickin is offline   Reply With Quote
Reply

Tags
battery, storage, winter

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 06:03 PM.