RV Trip Planning Discussions

Go Back   iRV2 Forums > RV SYSTEMS AND TECHNOLOGIES FORUMS > RV Systems & Appliances
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 06-29-2020, 01:25 AM   #1
Junior Member
 
Join Date: Jul 2018
Posts: 3
Lithium Battery Boost?

Hi. Iíve got a question thats probably a simple answer. Iíve got a 2013 Georgetown 377 with original electrical system except for the replacement of lead acid batteries. Iím considering upgrading to lithium and possibly solar and all that entails. One thing Iím not clear on is the battery boost. When you switch to lithium coach batteries do you retain your lead acid batteries for battery boost capabilities? Is the battery boost capability assumed by the lithiums in the new wiring configuration or are they unable to provide the cranking amps fast enough to start the engine? I know this must have have been dealt with on every conversion to lithium and is probably simple.
__________________

wdcooper 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 06-29-2020, 09:03 AM   #2
Senior Member/RVM #90
 
MSHappyCampers's Avatar
 
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 41,584
Hi ! Welcome to IRV2! We're sure glad you joined us!

I can't answer your question but someone will be along shortly who can help!

Good luck, happy trails, and God bless!
__________________

__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
MSHappyCampers is offline   Reply With Quote
Old 06-29-2020, 09:16 PM   #3
Senior Member
 
momdoc's Avatar
 
Tiffin Owners Club
Join Date: Jul 2016
Location: Dominican Republic
Posts: 8,954
Welcome to the forum.

You are joining a good group of folks here with good info to share. Read the various threads and ask questions as they come up or add info if you can.

Sorry I can't help but some one here will have an answer for you.

Good luck and enjoy the adventure!
__________________
momdoc
2018 Tiffin Allegro RED 37PA
2020 JEEP Trailhawk
momdoc is offline   Reply With Quote
Old 06-29-2020, 09:28 PM   #4
Member
 
Join Date: Sep 2018
Posts: 32
I completely replaced all of my FLA house batteries with LiFePO4. I don't have a definitive answer for you, but I don't expect any issue with the boost switch. Lithium ion batteries are generally able to provide high current, which is why jump boxes nowadays use them.
__________________
2018 Thor Aria 3401
jtyphoid is offline   Reply With Quote
Old 06-29-2020, 10:09 PM   #5
Senior Member
 
jcussen's Avatar
 
Join Date: Jul 2018
Posts: 2,040
Four coaches with lithium house and lead acid start batteries. If you have to start your coach with the boost feature, no harm to the lithiums, matter of fact, engine will probably start faster because of the slightly higher voltage. But if you have a bim or isolator, need to check it out because of the different charging profiles of lithium and lead acid.
__________________
Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
jcussen is online now   Reply With Quote
Old 06-30-2020, 12:56 AM   #6
Junior Member
 
Join Date: Jul 2018
Posts: 3
Thanks, figured it was simple but wasn't sure about the CCA of Lithiums
wdcooper is offline   Reply With Quote
Old 06-30-2020, 09:20 AM   #7
Senior Member
 
jcussen's Avatar
 
Join Date: Jul 2018
Posts: 2,040
Quote:
Originally Posted by wdcooper View Post
Thanks, figured it was simple but wasn't sure about the CCA of Lithiums
The Lithium batteries most use for house batteries are not normally designed as starting batteries and are not rated in CCA. But for occasional use to assist your lead acid start battery. probably won't harm them. They do make lithium start batteries but they are very expensive. https://antigravitybatteries.com/pro...es/automotive/
__________________
Foretravel tag axle 40 ft. 500 hp/1550 ft/lbs ism 1455 watts on the roof. 600 a/h's lithium down below.
jcussen is online now   Reply With Quote
Old 06-30-2020, 11:19 AM   #8
Senior Member
 
Sky_Boss's Avatar


 
Newmar Owners Club
Freightliner Owners Club
Spartan Chassis
Join Date: Apr 2012
Location: ON THE ROAD...SOMEWHERE
Posts: 6,897
As to the boost switch question. It doesn't know what kind of batteries you have. It will gang what ever you have to the starter circuit. Your concern is whether or not your choice (design and number) of LFPO batteries are sufficient for a boost start without overtaxing your house batteries.

There are some considerations for both the number and max output per battery. The battery manufacturer should publish discharge information. (See attachment for my batteries as an example)

I have 3 of them and their combined PEAK output is 600 amps for anywhere between 5-10 seconds. There are lithium batteries with higher peak and/or continuous output but with higher prices.

PERSONALLY...If I ran into a relatively dead starter battery situation I get on shore or generator power before using the boost to start the engine. I would also force the charger into a bulk charge in an effort to give them a "shot". If not on shore power and I could not start the generator in the normal way I would use the boost button to start the generator and then force the bulk charge.

BTW, if you are concerned about whether your LFPO battery specs meet your starting needs, I would go straight to forcing a bulk charge and if needed starting the generator with the boost switch if not on shore power.

YMMV!
Attached Files
File Type: pdf Relion-Data-Sheet-RB300-2019.pdf (453.2 KB, 3 views)
__________________
Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V, Blue Ox Avail, SMI AF1.
Sky_Boss is offline   Reply With Quote
Old 07-01-2020, 02:29 AM   #9
Junior Member
 
Join Date: Jul 2018
Posts: 3
Thanks
I think my fear was that system just for battery boost would have to be kept separate. I didn’t think that was right but hadn’t seen anything addressing battery boost directly when converting to lithium. Obviously this is because it’s not really an issue.

Engage the generator if battery booster is required also had not occurred to me and of course makes sense. I’ve only had the coach for a little over a year and did have to use the battery boost at the very beginning but replaced the chassis battery immediately and had no problems since.
__________________

wdcooper is offline   Reply With Quote
Reply

Tags
lithium



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
How good are the small Lithium boost boxes ajsfla Gear and Product Discussions 10 10-30-2019 09:31 PM
C7: Phantom "Low Boost" and "No Boost" Codes ProjectPro Caterpillar Engine Forum 6 12-22-2016 12:20 PM
Video Switchbox / Converter Box Hookup - To boost or not to boost? Planocat Newmar Owner's Forum 3 05-19-2015 05:26 PM
Turbo Boost What is the Maximum Boost that a 5.9, 275HP shogun1940 Cummins Engines 10 11-30-2014 07:47 PM
Boost/no boost JDD Cummins Engines 16 11-09-2014 08:01 AM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 05:15 PM.


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