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chassis battery charge ?

Brownleaf
Explorer
Explorer
I drive my motorhome a few miles every 9-10 days. It occurred to me that the chassis battery is not getting charged enough. Thus the above question does plugging it in to charge house batteries affect the chassis battery? I don't have devices to check charge, I guess an auto parts store could check it. Gas was low yesterday but there was gas in there and once yesterday and once today it would not turn over and catch till the second try ( where I pumped the gas pedal to the floor before the second try where it did start. thanks Doug
28 REPLIES 28

dedmiston
Moderator
Moderator
Please play nice with each other.

2014 RAM 3500 Diesel 4x4 Dually long bed. B&W RVK3600 hitch • 2015 Crossroads Elevation Homestead Toy Hauler ("The Taj Mahauler") • <\br >Toys:

  • 18 Can Am Maverick x3
  • 05 Yamaha WR450
  • 07 Honda CRF250X
  • 05 Honda CRF230
  • 06 Honda CRF230

Bobbo
Explorer II
Explorer II
RLS7201 wrote:
Brownleaf wrote:
RLS, I will call Winnebago to make sure. RVdoc said otherwise. Doug


Why would you call Winnebago to question my Fleetwood response?

Richard

Maybe because he has a Winnebago, not a Fleetwood.
Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
2017 Airstream Flying Cloud 23FB

RLS7201
Explorer
Explorer
Brownleaf wrote:
RLS, I will call Winnebago to make sure. RVdoc said otherwise. Doug


Why would you call Winnebago to question my Fleetwood response?

Richard
95 Bounder 32H F53 460
2013 CRV Toad
2 Segways in Toad
First brake job
1941 Hudson

Grit_dog
Traveler III
Traveler III
^Yup great idea. Another one of the many ways to skin this cat that don’t require doing laps around the block aimlessly in a motorhome.
Maybe for the OP consider going the opposite direction half the time. You know, for even tire wear and new scenery!
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

JaxDad
Explorer III
Explorer III
If your house & chassis batteries live in the same place just take the cheapest set of booster cables you can lay your hands on and connect the house & chassis batteries for 24 hours every couple of weeks.

Great? No, but far better than nothing.

Grit_dog
Traveler III
Traveler III
TCBear wrote:
"No they’re not “designed” to sit longer."

Of course motorhome chassis, drivetrains and bodies are designed with extended storage in mind -- that's what people routinely do with them, so all that's taken into account by component engineers in their durability and longevity objectives. And because they are, the vehicles can survive certain things (including neglect) that a Ferrari V-12 supercar might not tolerate as well.

Yeah, when you put it like that, you’re absolutely correct.
In fact I was thinkin tonight on my way home from work that it’s been a few weeks since I drove the ole Koenigsegg and the oil might be gettin rusty and damaging the piston turbulators. So went out and ripped off a couple laps at PIR and then came home and changed the oil. Hope she makes it til the next time it’s not raining out.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

Grit_dog
Traveler III
Traveler III
Brownleaf wrote:
Gritdog, just took it out for a few miles and it started out on the dash saying 50% charged and went up to about 5/8 charged by the end. Do I need to worry if that dash indicater is valid? Doug

Wow, umm, idk. I’ve never seen a dash indicator in % of charged. That’s kinda cool. And appears to be working if you think the battery was low and then it went up a bit after driving a bit. Hell, idk, test the theory out. More fun than hooking up a battery charger if you got nothing else to do and a couple cold road sodas.
Take the same lap 4 times and see if it goes to full.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

Brownleaf
Explorer
Explorer
RLS, I will call Winnebago to make sure. RVdoc said otherwise. Doug

RLS7201
Explorer
Explorer
If you MH is a 1986 or later Fleetwood product, it is designed to charge all batteries when plugged in.

Richard
95 Bounder 32H F53 460
2013 CRV Toad
2 Segways in Toad
First brake job
1941 Hudson

Brownleaf
Explorer
Explorer
TC, it appears I' going to differ on everybody about letting it sit or getting it out. One more issue is there is rust underneath and it sits in my carport where it is very humid and moisture accumulates and does not drain well below the rv. Because of that I feel those jaunts help dry it out underneath. Doug

TCBear
Explorer
Explorer
"No they’re not “designed” to sit longer."

Of course motorhome chassis, drivetrains and bodies are designed with extended storage in mind -- that's what people routinely do with them, so all that's taken into account by component engineers in their durability and longevity objectives. And because they are, the vehicles can survive certain things (including neglect) that a Ferrari V-12 supercar might not tolerate as well.

Brownleaf
Explorer
Explorer
Gritdog, just took it out for a few miles and it started out on the dash saying 50% charged and went up to about 5/8 charged by the end. Do I need to worry if that dash indicater is valid? Doug

Grit_dog
Traveler III
Traveler III
Sounds like you’re just burning gasoline for nothing….
But again context is everything. Is it possible that you’ve just discharged the battery a bunch from not running it long but starting it a bunch of times?
Why not just charge up the battery and see if it holds a charge if you suspect it is an issue?
Don’t overcomplicate this.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

Brownleaf
Explorer
Explorer
Thanks to all for good information. Am interested in the idea of the solar charger. I will check them all out. Have not been driving further on my jaunts because still not sure of its mechanics and have yet to be happy with a local dependable mechanic. Doug

Sandia_Man
Explorer
Explorer
You can use something like this plug in voltmeter to keep track of battery voltage, plus it can come in handy if you need to charge devices via USB. Adding something like this battery maintainer will keep battery charged, trickle charges preventing overcharging chassis battery. Many motorhomes do come with the capability to charge both house and chassis batteries when plugged into shorepower, trickle chargers are a good alternative if a motorhome does not have this capability or if charging solenoid is faulty which can be an expensive repair.

We use our motorhome throughout the year but on occasion it will sit unused for a few weeks, prior owners hardly used it last few years they owned it as they were in their 80s and dealing with health issues. We purchased it and other than changing tranny and engine oil along with a fresh set of tires as they were aged out, we put 25K miles over 3 years without any issues. No problem taking your rig out for a spin as you wish but motorhomes along with every type of RV class tend to sit unused for months although keeping batteries charged can be an issue.