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


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-17-2022, 07:30 PM   #1
Winnebago Camper
 
Join Date: Jul 2021
Posts: 7
LifePO4 battery question

Hi. When my house batteries died, I decided to upgrade to lithium batteries for longevity. I invested on a decent battery and a new solar charger that is compatible with lithium. I didnít know at the time that lithium batteries are not powerful enough to start the generator. I cannot return the battery so I am stuck with it now. I learned that it is possible to connect the generator to a battery of its own. I think thatís a good solution but Iím not sure if I can pull it off. Iím not technically savvy when it comes to electronics. I found the wiring diagram but couldnít make anything out of it. Has anybody tried this before? I would appreciate a walk-through as to how to disconnect the generator from the house batteries, attach it to a new one, and later connect them to the house batteries for charging purposes.
Donavan is offline   Reply With Quote
Old 01-17-2022, 07:53 PM   #2
Winnebago Master
 
Join Date: May 2020
Location: Sugar Land, TX
Posts: 570
You'll need to provide more details to get any useful feedback - such as the battery you installed, generator, etc.

In our 2021 View 24D, we have two Lithionics 125Ah Group 31 batteries installed in parallel. I've started our Onan QD 3200 diesel generator in subfreezing temperatures with less than 15% charge on the two batteries - and suspect the generator would start with only one battery turned on.

Assuming everything is wired properly and the lithium battery has some charge in it, it should be able to provide enough power to start a generator.

Though more details would be needed to understand what's happening in your RV.
rprochnow is offline   Reply With Quote
Old 01-17-2022, 07:57 PM   #3
Winnebago Camper
 
Join Date: Jul 2021
Posts: 7
I have one 100amp lithium and onan marquis 7000 gas. I think this is a weak setup. Not sure adding a second battery will solve the issue as the generator is just too big.
Donavan is offline   Reply With Quote
Old 01-17-2022, 08:23 PM   #4
Winnebago Master
 
Join Date: May 2020
Location: Sugar Land, TX
Posts: 570
I checked the specs for our Lithionics batteries. Each battery can provide a surge of up to 400A for no more than 30sec. With two batteries, our batteries can provide surge current of up to 800A for up to 30 sec.

Do you know the surge discharge current spec for your 100A battery?

Do you know the starting amps required for your generator?

If you have a 7000 generator - seems like a single 100Ah battery won't provide you very much power. Adding a second battery might solve the generator startup problem - and also double the amount of power you have available for boondocking (without running air conditioners).
rprochnow is offline   Reply With Quote
Old 01-17-2022, 08:44 PM   #5
Site Team
 
creativepart's Avatar
 
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 5,504
What year, model etc are you asking about. That’s info we always need.

If you have a 7000w genset you must have a large motorhome???

A large motorhome and only one house battery… again???
__________________
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
creativepart is offline   Reply With Quote
Old 01-18-2022, 10:50 AM   #6
Winnebago Owner
 
Marine359's Avatar
 
Join Date: Oct 2020
Location: Asheville, NC
Posts: 831
Check in your generator manual to determine starting amperage required for your genset. A 100ah LFP with 100amp bms can should be enough to start most gasoline or propane genset. Bigger gensets sometimes have their own Fla starting battery with higher CCA than lithium.
__________________
Jim. 2021b Micro Minnie 2108DS, 110w foldable solar
2021 GMC Canyon Denali 3.6L Gas 4x4, Husky C-Line
170AH LiFePo4, Xantrex XC2000, Champion 2500w df
Marine359 is offline   Reply With Quote
Old 01-27-2022, 07:18 AM   #7
Winnebago Watcher
 
Join Date: Sep 2021
Posts: 2
I have 3 100amp lithium batterys in parallel and a 5500 watt Generator and have no truble starting my Generator.
JeffRobinson is offline   Reply With Quote
Reply

Tags
battery


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
For Sale: LifeBlue 100ah battery (Lithium, LifePo4) tbrady Parking, Parts & Accessories For Sale & Wanted 1 04-22-2022 07:24 PM
2108DS LiFePO4 Battery Box tinglett Winnebago Travel Trailers 2 04-30-2021 08:32 AM
Battery Analysis: LiFePO4/AGM/FLA BobC Electrical | Charging, Solar and Electronics 11 01-13-2021 04:31 PM
New lower cost LiFePO4 battery DavidM Electrical | Charging, Solar and Electronics 18 12-04-2020 03:34 PM
LiFePO4 Battery Isolation Manager West6550 Electrical | Charging, Solar and Electronics 42 01-01-2019 08:28 AM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 06:30 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
×