
	Already a member? Login here. If not, Register Today! \| Help

Newest | Active | Popular | RVing FAQ

Forum Rules | Forum Posting Help and Support | Contact

Open Roads Forum > Tech Issues

Reply to Topic | Subscribe | Print Page | Post New Topic |

Sponsored By:

Itinerant1

Itinerant

Senior Member

Joined: 05/23/2017

View Profile

Posted: 09/20/20 07:00am

Link | Quote | Print | Notify Moderator

No it didn't work. Take a screen shot and post as a picture. Or use a free pfd uploading host site, it will give options on how you want to post it in a thread.

12v 500ah (5,120Wh usable), 20 cells_ 4s5p (GBS LFMP battery system). 8 CTI 160 watt panels (1,280 watts)2s4p,Panels mounted flat. Magnum PT100 SCC, Magnum 3012 hybrid inverter, ME-ARC 50. Installed 4/2016 been on 24/7/365, daily 35-45% DOD 1,600+ cycles.

pianotuna

Regina, SK, Canada

Senior Member

Joined: 12/18/2004

View Profile

Offline

Posted: 09/20/20 08:49am

Link | Quote | Print | Notify Moderator

Steveh27,

The LI are fine.

The wiring is also fine.

The alternator needs to have a duty cycle that will accommodate 50 amps continuous. Research the make and model of alternator.

Regards, Don
My ride is a 28 foot Class C, 256 watts solar, soon to have SiO2 batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

steveh27

Grosse Pointe Woods, MI

Senior Member

Joined: 08/21/2004

View Profile

Good Sam RV Club Member

Posted: 09/20/20 03:02pm

Link | Quote | Print | Notify Moderator

need to learn again about posting jpgs. DO I need to have them on some other online site first?

BFL13

Victoria, BC

Senior Member

Joined: 02/15/2006

View Profile

Posted: 09/20/20 04:53pm

Link | Quote | Print | Notify Moderator

steveh27 wrote:

need to learn again about posting jpgs. DO I need to have them on some other online site first?

http://photoposting.is-great.net/?i=2

1. 1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
Photo in Profile
2. 1991 Bighorn 9.5ft Truck Camper on 2003 Chev 2500HD 6.0 Gas
See Profile for Electronic set-ups for 1. and 2.

msmith1199

Reno, NV

Senior Member

Joined: 10/07/2001

View Profile

Good Sam RV Club Member

Posted: 09/20/20 11:43pm

Link | Quote | Print | Notify Moderator

steveh27 wrote:

Here's a site I found:

https://shop.pkys.com/Alternator-Lithium-Battery.html

The info in this article is pretty much exactly what the techs at Battleborn batteries told me. And I have purchased the DC to DC converter. Now just a matter of finding someone to install it. Everybody around here is booked and I don’t have the knowledge to install it myself. It looks easy but it needs to be installed and the old wires need to be disconnected. Hopefully the old wires can be used on the DC to DC converter so new wiring doesn’t have to be run throughout the motorhome. But that’s all above my pay grade. I don’t even change my own oil!

2021 Nexus Viper 27V. Class B+
2019 Ford Ranger 4x4

steveh27

Grosse Pointe Woods, MI

Senior Member

Joined: 08/21/2004

View Profile

Good Sam RV Club Member

Posted: 09/21/20 04:43am

Link | Quote | Print | Notify Moderator

Hope this works for the 4 pages of battery specs:

[image]

Thanks for the help.

msmith1199

Reno, NV

Senior Member

Joined: 10/07/2001

View Profile

Good Sam RV Club Member

Posted: 09/21/20 09:14pm

Link | Quote | Print | Notify Moderator

Okay, for the latest. I contacted an installer recommended by the battery company. He told me since my motorhome was so new I may already have a DC to DC converter in it and he suggested a contact the motorhome builder to see. So I contacted my motorhome builder to see if they had already installed a DC to DC converter and told them what I was trying to do. This is their reply to me:

Mark,

A DC / DC regulator / converter is unnecessary to use lithium ion batteries on the house side, our BIRD (bi-directional relay/ delay ) already serves that purpose. There should not be any modifications necessary to use lithium ion batteries on the house side.

So I called the tech at the Battery Manufacturer and told them about this BIRD thing, and they disagree that it will replace the the DC to DC converter. So now I have no idea what to do! Any ideas? I do have an appointment to meet with the installer on Thursday and I’ll see what he has to say.

BFL13

Victoria, BC

Senior Member

Joined: 02/15/2006

View Profile

Posted: 09/21/20 10:42pm

Link | Quote | Print | Notify Moderator

Going around in circles here [emoticon]

This came up earlier and explains it all for DC-DC and some good diagrams. Just get your guy to do which applies to yours. The MH builder is behind the times it seems.

https://shop.pkys.com/Alternator-Lithium-Battery.html

01tundra

Middle, TN

Full Member

Joined: 06/21/2017

View Profile

Good Sam RV Club Member

Offline

Posted: 09/22/20 06:14am

Link | Quote | Print | Notify Moderator

I'm running a Victron Orion 12/12-18 DC-DC charger with a dedicated 4AWG charging circuit from the truck. I get 25A out of it at peak charging and don't have to worry about the truck's alternator voltage fluctuation or it being harmed.

The charger has settings that allow it to sense alternator current to automatically start/stop to prevent the trailer LiFePO4 batteries from drawing down the truck lead acid batteries when the engine is off.

[image]