RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Toy Haulers Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-20-2020, 06:51 PM   #1
Senior Member
 
Join Date: Apr 2014
Posts: 120
Voltage Question

2021 Winnebago bumper pull toy hauler .. Spyder .. here goes .. we have 2 6 volt batteries mounted on the tongue .. there is 1 solar panel on the roof .. there is a converter only .. inside the trailer and according to the RV tech .. the converter does charge the battery while the generator is running and also on shore power ... HOWEVER if left on Shore power for extended periods of time .. it will over charge the batteries and would ruin them .. with that being said .. we want to connect a simple Volt meter to the battery .. that way we will have a current reading of how many volts that batters are at .. SO .. if we are off shore power and the generator is not running BUT the solar is producing .. will the Volt meter read the battery voltage or will it read what is being produced by the solar panel ?
gpshay is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 10-20-2020, 07:26 PM   #2
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 8,202
The solar and battery are in parallel so the voltage reading will be the same.

Post the model of the converter/charger. It might be smart enough to leave connected full time but you still have to check battery water levels monthly if they have removable caps.
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2016 Ford F150 Limited V6 with Ready Brake
Aluminator tow bar, Demco base plate
YC1 is online now   Reply With Quote
Old 10-20-2020, 09:30 PM   #3
Senior Member
 
Unplanned's Avatar


 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe
Posts: 4,159
You can buy a solar charge controller for not much money. That's the first step I would take.

Also, you could buy a basic charger/maintainer and run it off an outlet that is live when on shore or genset. That will bring them up and hold them on float. It seems odd that the on-board charger/converter doesn't go to a float mode.

Remeber the voltage you will read while the battery is charging will be higher than the true resting voltage. At rest the voltage will be around 12.6 at 100%, and 12.06 at 50%.
__________________
Happy Glamping.Norman, 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
Unplanned is offline   Reply With Quote
Old 10-21-2020, 10:47 AM   #4
Senior Member
 
Join Date: Apr 2014
Posts: 120
Remeber the voltage you will read while the battery is charging will be higher than the true resting voltage. At rest the voltage will be around 12.6 at 100%, and 12.06 at 50%.
Ok .. so in daylight hours when the solar panel is charging the volt meter will read what is coming into the battery .. after the sun goes down .. the reading the volt meter shows will actually be the true resting voltage .. am I understanding this ?
gpshay is offline   Reply With Quote
Old 10-21-2020, 10:53 AM   #5
Senior Member
 
Join Date: Jul 2014
Posts: 24,743
Correct, after a few hours of darkness, with nothing on, you can read resting voltage.

Nothing electrical, you can have clothes on
twinboat is offline   Reply With Quote
Old 10-21-2020, 12:01 PM   #6
Senior Member
 
Join Date: Nov 2018
Location: Beaver Dam, Wisconsin
Posts: 1,598
Battery charging

Adding a voltmeter is a good idea. Learning what it means is also important.

There are three basic voltage profiles. They are charging, discharging, and static. Static means neither charging nor discharging for a while. For accurate static reading wait 4 hours after charging has stopped. Watching the voltmeter will teach you how long it takes before voltage stabilizes.

Charging voltage profile is a combination of charger (either converter or solar) and the batteries used. It starts at the existing voltage and slowly rises. High capacity chargers raise the voltage faster. Smaller batteries raise faster.

Voltage usually raises to more than 13.0 volts. I had an older one that rose to 13.3 volts and stayed there. The one I have now is more complected. It raises to 14.4 volts for 4 hours then drops to 13.6 volts. After a few days of stable current, it drops to 13.2 volts.

13.2 volts is great for long term storage for all lead acid batteries including AGM batteries. 13.6 is OK long term for flooded cell batteries. 14.4 volts for longer periods will damage AGM batteries and will cause flooded cell batteries to consume lots of water. 15.0 volts is sometimes used on flooded cell batteries to "condition", "equalize", or recover from storing at low voltages. Don't do this for long periods. Don't do this on most AGM's. Always check and refill water levels after high voltage charging.

I wish you good luck and happy trails ahead!

Choosing An RV Battery https://www.irv2.com/forums/download...do=file&id=231

Battery University https://batteryuniversity.com/

How does the Lead Acid Battery Work? https://batteryuniversity.com/learn/...ased_batteries

Charging lead acid batteries https://batteryuniversity.com/learn/...d_acid_battery

AGM https://batteryuniversity.com/learn/..._glass_mat_agm

How to Charge and When to Charge? https://batteryuniversity.com/learn/...o_charge_table

How to Store Batteries https://batteryuniversity.com/learn/...tore_batteries

Summary of Do’s and Don’ts https://batteryuniversity.com/learn/..._battery_table

Charging with Solar, Turbine https://batteryuniversity.com/learn/...ar_and_turbine
__________________
Paul Bristol
Kodiak Cub 176RD
Nissan Pathfinder 2015
Persistent is offline   Reply With Quote
Old 10-21-2020, 02:32 PM   #7
Senior Member
 
Join Date: Nov 2015
Posts: 13,934
2021 RV with a 'stupid' converter.........DOUBT it!!

It is at least a 3 stage converter/charger and maybe a 4 stage version
It CAN be left ON 24/7
One just needs to pay attention to battery water levels until you know if it is overcharging

RV Tech must not have CHECKED which Brand/Model of converter you have to have made such a statement

My 2007 5th wheel is plugged in 24/7 when parked at home....so that batteries STAY charged
__________________
Is it time for YOUR Medication or Mine?
Dodge 3500 w/Tractor Motor & NUWA 5vr
US NAVY---USS Decatur DDG-31
Old-Biscuit is offline   Reply With Quote
Old 10-23-2020, 10:42 AM   #8
Senior Member
 
Join Date: Apr 2014
Posts: 120
twinboat ... Shhhhh ! Not to loud the wife might hear you !
gpshay is offline   Reply With Quote
Reply



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
AGS start voltage vs Low Voltage Cutoff pilotspike Newmar Owner's Forum 8 04-25-2016 11:06 AM
Battery Voltage Sag and Low Voltage Cutoff Pullin' Chocks RV Systems & Appliances 8 08-19-2014 11:46 PM
Magnetek Charger/Converter Voltage Question 56Nomad RV Systems & Appliances 5 03-22-2007 05:51 AM
A question on Voltage Big Ben Winnebago Industries Owner's Forum 8 03-07-2006 06:10 PM


All times are GMT -6. The time now is 06:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.