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


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 03-30-2018, 05:24 PM   #1
2 Rivet Member
 
83Airstrm280's Avatar
 
1983 28' Airstream 280
Burlingame , California
Join Date: Jun 2013
Posts: 22
Solar Components! Need advice!

Hello all,

I am currently deep into my resto-mod of my 1983 Airstream 280 Turbo Diesel and am now at the point where I need to figure out how i am going to wire my solar, battery bank, and new charger/converter/inverter.

Here's the curve-ball... I want to run a lithium ion (lifepo4) battery bank.

Items I currently have are as follows.

-AIMS Power 4000w 12vdc to 120vac Pure Sine Inverter charger https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1

-6 100w solar panels
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Now, ideally I would use a Inverter/charger that is solar capable and can charge a lithium ion battery.... but apparently that doesn't exist, forcing me to break up the system into separate components. From my understanding, I can get a BMS (battery management system) for my lithium batteries and charge them as if they were lead acid or agm. I was also going to find a solar charger for lithium batteries and set up that directly to the bank.

Anyways, sorry for the long post... And please, chime in! I currently have the inner skins pulled from my rig so now is the time for wiring!

Thanks!
R.J.
83Airstrm280 is offline   Reply With Quote
Old 03-30-2018, 05:47 PM   #2
Dazed and Confused
 
Isuzusweet's Avatar
 
Currently Looking...
1983 31' Airstream310
Hillsburgh , Ontario
Join Date: Sep 2012
Posts: 3,805
You need to PM Lewster.

As an aside....why the big push to go solar?
Will you find yourself off grid enough to warrant the cost?
You have a generator don't you?
Replacing all your lights, including headlamps, will significantly reduce your electrical drain.
You can buy portable battery storage devices that you can charge up at work and take back to the coach to power your devices.
I wonder if the new ceramic batteries have come out yet?

Cheers
Sidekick Tony
__________________
Per Mare, Per Terram and may all your campaigns be successful.

“It’s a recession when your neighbor loses his job; it’s a depression when you lose your own.” "Harry S Truman"
Isuzusweet is offline   Reply With Quote
Old 03-30-2018, 07:05 PM   #3
Rivet Master
 
2011 22' Sport
Portland , Oregon
Join Date: Aug 2017
Posts: 605
Your targeted inverter/charger doesn't mention supporting Lithium batteries, so that may not work out very well. While you can use a BMS to "manage" the lithium batteries, you need a charging system that supports the potential voltage requirements of lithium...which this one likely does not. You will need to pick which battery vendor you are going to select, as that impacts the charge voltage profile.

As for the solar aspect, the flexible panels are not a great investment as they are not very durable/reliable nor are they overly efficient. Perhaps efficiency/sqft doesn't matter, but you may want to consider actual produced watts/$ invested.
SilverHouseDreams is offline   Reply With Quote
Old 03-31-2018, 12:07 AM   #4
2 Rivet Member
 
83Airstrm280's Avatar
 
1983 28' Airstream 280
Burlingame , California
Join Date: Jun 2013
Posts: 22
thanks for the replies.

I purchased that inverter/charger 6 months ago with a plan on how to implement it.... I've now forgotten what was was.

Now that I've had a bit of time to think about it, I believe I had intended to use it strictly as an inverter with a separate lithium ion battery charger/solar charger.

is this even feasible?
83Airstrm280 is offline   Reply With Quote
Old 03-31-2018, 10:43 AM   #5
3 Rivet Member
 
2017 25' International
Framingham , Massachusetts
Join Date: Oct 2015
Posts: 142
Go to the AM Solar website and start reading up. (amsolar.com)


Also as someone already suggested send a “pm” to Lewster. This is what he does and is a well of info and wisdom. Do this soon before you waste money on items that won’t do what you want.
quietguy is offline   Reply With Quote
Old 03-31-2018, 10:45 AM   #6
Rivet Master
 
daleyocum's Avatar
 
2018 25' Flying Cloud
Portland , Oregon
Join Date: Oct 2017
Posts: 939
There are tons of good tutorials on all things solar on the AMSolar site. Watching those will probably answer many of your questions. They are also a dealer for many components you’ll need like a solar charge controller, battery monitor, etc. Victron would be a good vendor to start with for those things.
daleyocum is offline   Reply With Quote
Old 03-31-2018, 11:22 AM   #7
Airstream owner 30 years
 
Currently Looking...
2018 Interstate Grand Tour Ext
Bev Hills , California
Join Date: Mar 2018
Posts: 33
I commend you on going solar and trying to be more "green". Look at some of the marine websites as boaters make extensive use of solar with interfacing the generators etc. Also some people have gone with 6V AGM golf cart batteries wired serially to get 12 V as longer lasting than the traditional 12V. Be careful with working with solar,as during the day it can generate enough amperage to electrocute you.
Keithkleinmd is offline   Reply With Quote
Old 03-31-2018, 11:28 AM   #8
2 Rivet Member
 
Currently Looking...
Ventura County , California
Join Date: Dec 2013
Posts: 22
Quote:
Originally Posted by 83Airstrm280 View Post
Hello all,

I am currently deep into my resto-mod of my 1983 Airstream 280 Turbo Diesel and am now at the point where I need to figure out how i am going to wire my solar, battery bank, and new charger/converter/inverter.

Here's the curve-ball... I want to run a lithium ion (lifepo4) battery bank.

Items I currently have are as follows.

-AIMS Power 4000w 12vdc to 120vac Pure Sine Inverter charger https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1

-6 100w solar panels
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Now, ideally I would use a Inverter/charger that is solar capable and can charge a lithium ion battery.... but apparently that doesn't exist, forcing me to break up the system into separate components. From my understanding, I can get a BMS (battery management system) for my lithium batteries and charge them as if they were lead acid or agm. I was also going to find a solar charger for lithium batteries and set up that directly to the bank.

Anyways, sorry for the long post... And please, chime in! I currently have the inner skins pulled from my rig so now is the time for wiring!

Thanks!
R.J.
Hi take a look at Lensun flexible panels or Go Power flexible panels on Amazon. Pat
Patandlinda is offline   Reply With Quote
Old 03-31-2018, 03:26 PM   #9
2 Rivet Member
 
83Airstrm280's Avatar
 
1983 28' Airstream 280
Burlingame , California
Join Date: Jun 2013
Posts: 22
Ive sent an email to amsolar and i will pm lewster soon.

it seems my main issue is finding a way to charge the LiFePo4 battery bank. Finding a Solar MPPT controller is easy but i would like to be able to charge when I'm hooked up to 110v as well (or running the generator). I cannot seem to find an inverter/charger that will charge a lithium battery bank (although the AIMS can output up to 15.1v for charging).

Anyways, I have reached out to a few experts so we'll see what comes back.
83Airstrm280 is offline   Reply With Quote
Old 03-31-2018, 03:39 PM   #10
Rivet Master
 
2011 22' Sport
Portland , Oregon
Join Date: Aug 2017
Posts: 605
Solar Components! Need advice!

If the AIMS has adjustable voltage and you can set it to just charge at a constant 14.4-14.6VDC, then that is all need. The key thing is to not have a charger that drops to a 13.2-13.6V float.
SilverHouseDreams is offline   Reply With Quote
Old 03-31-2018, 09:00 PM   #11
2 Rivet Member
 
2003 25' Safari
LAS VEGAS , Nevada
Join Date: Feb 2018
Posts: 49
Quote:
Originally Posted by 83Airstrm280 View Post
Ive sent an email to amsolar and i will pm lewster soon.

it seems my main issue is finding a way to charge the LiFePo4 battery bank. Finding a Solar MPPT controller is easy but i would like to be able to charge when I'm hooked up to 110v as well (or running the generator). I cannot seem to find an inverter/charger that will charge a lithium battery bank (although the AIMS can output up to 15.1v for charging).

Anyways, I have reached out to a few experts so we'll see what comes back.
I don't know what info or experience you may have with LiPo batteries, so here is my word of caution:
LiPo batteries require voltage limiting during charging as well as current limiting. Over voltage can cause fires. Be sure to stick to the manufactures recomdations for charging any LiPo batteries. Remember the Samsung phone
fires a few years ago? Wrong charging proceedure. And the fires can occur even after disconnecting the charger, if over charging has occurred. Be Safe. Get all the right info about charging your particular batteries.

Hope you have success with your system.

Abe
Abraham is offline   Reply With Quote
Old 04-01-2018, 12:43 AM   #12
Rivet Master
 
daleyocum's Avatar
 
2018 25' Flying Cloud
Portland , Oregon
Join Date: Oct 2017
Posts: 939
You’d have to sell your prospective inverter but something like the Victron Multiplus hybrid inverter/charger would handle much of you want to do with style in a single package.
daleyocum is offline   Reply With Quote
Old 04-01-2018, 12:47 AM   #13
Rivet Master
 
2011 22' Sport
Portland , Oregon
Join Date: Aug 2017
Posts: 605
Quote:
Originally Posted by Abraham View Post
I don't know what info or experience you may have with LiPo batteries, so here is my word of caution:

LiPo batteries require voltage limiting during charging as well as current limiting. Over voltage can cause fires. Be sure to stick to the manufactures recomdations for charging any LiPo batteries. Remember the Samsung phone

fires a few years ago? Wrong charging proceedure. And the fires can occur even after disconnecting the charger, if over charging has occurred. Be Safe. Get all the right info about charging your particular batteries.



Hope you have success with your system.



Abe

There are many different battery chemistries that include lithium. You are talking about lithium polymer, however I’m not are of anyone here discussing LiPo cells. We instead are talking about lithium iron phosphate (LiFePO
4), or LFP. Drastically different. More so than gasoline vs diesel fuel.

Additionally, all batteries need battery management to not be dangerous. Even lead acid can have horrific results if not vented properly and over charged. That said, the BattleBorn batteries and others like them have internal battery management systems that prevent most of these problems.

The fact is that many people buy low cost battery “vaults” on Amazon (often marketed as “generators”) that are far far more dangerous than these LFP banks, as those are cheaply assembled lithium polymer which can be extremely dangerous.
SilverHouseDreams is offline   Reply With Quote
Old 04-02-2018, 12:44 PM   #14
2 Rivet Member
 
2003 25' Safari
LAS VEGAS , Nevada
Join Date: Feb 2018
Posts: 49
Quote:
Originally Posted by SilverHouseDreams View Post
There are many different battery chemistries that include lithium. You are talking about lithium polymer, however I’m not are of anyone here discussing LiPo cells. We instead are talking about lithium iron phosphate (LiFePO
4), or LFP. Drastically different. More so than gasoline vs diesel fuel.

Additionally, all batteries need battery management to not be dangerous. Even lead acid can have horrific results if not vented properly and over charged. That said, the BattleBorn batteries and others like them have internal battery management systems that prevent most of these problems.

The fact is that many people buy low cost battery “vaults” on Amazon (often marketed as “generators”) that are far far more dangerous than these LFP banks, as those are cheaply assembled lithium polymer which can be extremely dangerous.
I am aware of LiFePO4 battery specifications and I use them. Even LiFePO4 batteries require slightly different care and charging than other types. It is true that many of them have protection circuits built in and that is good.

My words of caution were mostly aimed at your 3d paragraph situations. And following manufacture's recommendations, for any type battery, is always a good idea. It is just more problematic for users of Lithium Polymer types.

Abe
Abraham is offline   Reply With Quote
Old 05-01-2018, 01:31 AM   #15
2 Rivet Member
 
83Airstrm280's Avatar
 
1983 28' Airstream 280
Burlingame , California
Join Date: Jun 2013
Posts: 22
Thanks for the replies guys, AM Solar set me up with a package that will work with my existing inverter. I went with 3 life blue 300ah batteries, 700w of solar, a victron mppt charge controller, 3 stand alone 110v chargers for quick charging with the 6500w onan generator or shore power. And im in the process of upgrading to a 50a system as well. Should be a pretty solid rig and easy to swap components if needed.

Thanks again,
R.J.
83Airstrm280 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
Need help understanding elec. Components Landrum Electrical - Systems, Generators, Batteries & Solar 3 05-08-2014 07:42 PM
Need technical info for ordering electric brake components turfclubroad 1980 Caravelle 5 07-06-2009 10:30 PM
Shark-bite Pex components. boatdoc Fresh Water Systems 19 11-05-2008 08:00 AM
Steering components shocker bkahler Mechanics Corner - Engines, Transmission & More... 2 06-14-2007 05:54 AM
Parts source for 345 rear suspension components? Honkity Hank Classic Motorhomes 3 07-17-2006 01:56 PM


Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 03:34 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.