Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-27-2023, 08:52 PM   #1
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Solar and Lithium Battery Installation

We added solar and lithium batteries in April. AM Solar in Springfield OR did the installation and Iím really happy with the result.
Al

https://mobilemosers.com/2023/05/27/...-installation/

macnut 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 05-28-2023, 09:34 AM   #2
Member
 
johnbro27's Avatar
 
Newmar Owners Club
Freightliner Owners Club
Join Date: Feb 2023
Location: Bellingham, WA
Posts: 70
Nice write up.. Thanks for sharing.
__________________
2004 MADP 4018 "BamBam" FL chassis, Neway IFS
2020 Wrangler Sahara Toad, Roadmaster Nighthawk, AF One
johnbro27 is offline   Reply With Quote
Old 05-28-2023, 10:15 AM   #3
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Thanks! I think the most important part was the upfront planning with an electrical engineer.
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 05-28-2023, 05:01 PM   #4
Junior Member
 
Join Date: Apr 2023
Posts: 26
I have a couple of questions about the Victron Cyrix-Li-ct that was installed. Does this give you the ability to bridge both batteries for staring if the chassis batteries are low? Is the alternator charging the Li batteries while driving? Is the chassis battery being charged when plugged in?
__________________
Eric & Jean Nelson
2019 Dutch Star 4369
Flying E is offline   Reply With Quote
Old 05-28-2023, 08:11 PM   #5
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Quote:
Originally Posted by Flying E View Post
I have a couple of questions about the Victron Cyrix-Li-ct that was installed. Does this give you the ability to bridge both batteries for staring if the chassis batteries are low? Is the alternator charging the Li batteries while driving? Is the chassis battery being charged when plugged in?

Yes to all of those questions. I also had them install an on/off switch to it, as an extra precaution so I don’t overwork the alternator if the batteries are really low when I start a long drive.
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 05-31-2023, 11:02 AM   #6
Junior Member
 
Join Date: Feb 2022
Location: Camarillo,CA
Posts: 21
That is the same spot that I want to install Lithium batteries on my 2022 3014.

I currently have a 2000 watt inverter and a 60 amp MPPT solar controller installed on the lower portion of the bay.

I've recorded temps close to 140 degrees in the lower portion of the bay.

The upper shelf has recorded 160 degrees. I started watching the temperature because after one long summer drive, I removed a box i had stored on the upper shelf and was extremely hot. Almost to the point of burning my hand.

I'm fully aware of what a BMS does, but I'm worried its just a too hot location for the Lithium batteries. Not sure if a fan would accomplish anything due to the heat is coming from the shelf itself.

1) Does anyone else use that location or has recorded those temps that I have seen?

2) Any Ideas on lowering the temperature?

Nice install, but don't forget that switch on a long drive if the batteries need a lot of charge. My preference is a DC to DC charger. Has worked well on a previous RV. As I get older, one less mistake to make.
Cam Jack is offline   Reply With Quote
Old 05-31-2023, 12:33 PM   #7
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Cam Jack, I appreciate your post! Iíll be taking temperatures there while on the road tomorrow and will let you know what I find.

Iíve already talked to AM Solar and while it may not be a safety issue, I would be concerned if it reduces the life of the battery in the long term.

I may have them relocate the batteries to the bay between the hot water heater and the water tank. On the water tank side.

I may also try installing heat shield along the outside of the bay to see if that makes a difference. I would probably want that regardless of where my batteries are, just because I donít want the needless heat coming into the bay.

Once again, Iíll keep you posted!
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 05-31-2023, 04:15 PM   #8
Junior Member
 
Join Date: Feb 2022
Location: Camarillo,CA
Posts: 21
I like your shield idea!

I just looked under the bay. The Cat is just below the pass through. That make since for the excessive heat in that bay.

A friend who used to fabricate headers is helping me with a shield/installation idea.

That location is by far best spot for the shortest wire run to the inverter. I'll keep you advised when I install it and check the temperature.

I'll be driving to Oshkosh in July from California. I'll get good data then.

A 2023 3014 was park next to me. The Cat was in the same location as mine.
Cam Jack is offline   Reply With Quote
Old 05-31-2023, 07:06 PM   #9
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
CamJack, thatís awesome that you have someone to work with on the shield idea. Hereís the best photo I could get of the area. I tried to draw where the compartment is and yes, itís right over the catalytic converter!

Please let me know anything you find about the heat shield!

I was thinking of sticking this reflective shield right over that point. Theoretically it should help!

Design Engineering 010392 Reflect-A-GOLD High-Temperature Heat Reflective Adhesive Backed Sheet, 12" x 24" Sheet https://a.co/d/di2SIzk


Click image for larger version

Name:	IMG_6678.jpg
Views:	22
Size:	341.2 KB
ID:	394207

Hopefully we can solve this as Iíd hate to give up another bay for storing the batteries!

Btw, I did check my battery Bluetooth app, and there were no event recorded for over heating. So at least thatís good, considering I drove 500 miles from Grants Pass to the SF Bay Area, and then another 500 to Las Vegas. It was in the high 80s driving to Las Vegas.

Al
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 05-31-2023, 07:07 PM   #10
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Btw, the catalytic converter is on the left I. The photo (looking towards the rear of the coach). The cylinders on the right are part of the Liquid Spring installation.
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 06-01-2023, 08:54 PM   #11
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Ok, I just finished driving from North Las Vegas to Bakersfield, about 300 miles in 5 hours, starting at 1pm and ending at 6:10pm.

I drove 60-62 the entire way, but a little slower up the mountain passes and a little faster down.

The weather was warm, in the 90ís most of the trip till I started up the Tehachapiís then it cooled to about 80.

There was a strong 20+ mph headwind almost the entire drive, which reduced my normal 8.4mpg to 7.4mpg!

I only stopped for a quick restroom break.

Here is the temp data directly from the battery over the catalytic converter. The other battery was generally about 2 degrees cooler.
Start: 90
After 1st hour: 95
After 2nd hour: 99
After 3rd hour: 102
After 4th hour: 106
After 5th hour: 108 (107.8, actually)
It stayed there until I arrived.

It was 107.8 at the top of the Tehachapi and never moved after that. Probably because there was more downhill and it cooled to the low 80ís.

The inside of the compartment started at a little over 90 degrees and went up to about 110 pretty quickly, then went up and down between 110 and 120ish. It went down when going down the passes and up when climbing. I think the strong headwinds contributed to a higher temp, but I wasnít towing this time, which helped.

So, what I make of this is that the heat shielding under the compartment is helping, but should be improved.

Also, I think the batteries themselves must be insulated pretty well to start so much lower than the compartment itís sitting on after 5 hours.

Iím thinking Iíll keep the batteries where they are but add additional heat shielding to the bottom of the metal shielding Newmar provides.

Here the one Iím thinking of right now. The other one could only take 800 degrees, but this one is much higher. Even if it takes the temp down another 10 degrees it would be worth it.

BSTFLEX Reinforced Lava exhaust Heat Shield Mat 12 Inch x 24 Inch with adhesive Backed Resistant High-temp (12'' x 24'')Ö https://a.co/d/dAvorRw

What do you think?
Al
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 06-01-2023, 08:55 PM   #12
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Wow, I think that was my longest post ever!
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 06-01-2023, 09:01 PM   #13
Senior Member
 
macnut's Avatar
 
Newmar Owners Club
Ford Super Duty Owner
Join Date: Jun 2012
Location: CA
Posts: 2,123
Hereís a graph of the compartment temperature taken right beside the battery over the catalytic converter.
Click image for larger version

Name:	IMG_6707.jpg
Views:	14
Size:	185.0 KB
ID:	394286
__________________
2023 Newmar Bay Star 3014, towing 2014 Honda CRV
2017 Winnebago Adventurer 35P
2013 Itasca Sunstar 26HE
macnut is offline   Reply With Quote
Old 06-02-2023, 08:08 AM   #14
Junior Member
 
Join Date: Feb 2022
Location: Camarillo,CA
Posts: 21
Good information.

Is your temperature monitor actually laying on the top shelf where the batteries sit?

Sounds like your trip had somewhat good airflow. I noticed the higher temps in traffic and definitely driving up passes.

My friends idea with the extra insulation would be two parts. Attaching some type of blanket like your idea and also an aluminum shield with airspace between the Al shield and blanket.

Looks like i don't need the internal battery heaters!

I hope someone else has relocated the batteries into that spot and will comment.

I'll have to take a closer look at a 2023 and see if it has more insulation than my 2022. Newmar went from a 22K chassis to a 24K chassis in 2023. Maybe a little more distance from the Cat to the box.
Cam Jack is offline   Reply With Quote
Reply

Tags
battery, install, installation, lithium, solar



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
Lithium Battery installation and relocation 36MDDS paul65k Alpine Coach Owner's Forum 5 11-26-2022 06:42 AM
Lithium battery installation causing power fault and charger shutdown. Contender Going Green 2 08-09-2022 06:05 PM
Lithium battery installation causing power fault and charger shutdown Contender Class A Motorhome Discussions 13 08-08-2022 05:12 PM
Lithium Battery Installation Moira Monaco Owner's Forum 2 07-09-2022 07:33 PM
Lithium Battery installation issues C4thMnman National RV Owner's Forum 4 03-26-2021 03:14 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.