Lithium vs Lead Acid Batteries - Fiberglass RV


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Old 04-20-2018, 03:28 PM   #1
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Lithium vs Lead Acid Batteries

I thought this was an interesting comparison, though certainly the author has a bias toward Lithium. I found especially interesting the differences between charging each type. I now realize why an hour on the generator won't quite do the trick for my batteries. Probably had read that information in a different form, but didn't realize the implications.

422 Nights on Lithium (Batteries) – Slowboat

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Old 04-21-2018, 12:13 AM   #2
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I will be replacing our Lifeline AGM batteries, when the time comes, with Battle Born Lithium Iron Sulfate batteries, because of all the reasons outlined in the article.
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Old 04-21-2018, 09:18 PM   #3
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I will be replacing our Lifeline AGM batteries, when the time comes, with Battle Born Lithium Iron Sulfate batteries, because of all the reasons outlined in the article.
Dave & Paula
Do you think you will need to change out your charging system when you do the swap? My 2018 Casita sits at 13.8 V when plugged in and I see that the Battle Born LiFe batteries prefer 13.6 V. I've only had my TT a couple weeks and haven't popped the panel to see what I had for a converter/charger and look at specs. I do like your idea and when my AGM goes I will probably be looking at the same change.
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Old 04-21-2018, 09:50 PM   #4
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Jeff, I donít have a converter/charger, but rather just a CTEK smart charger, and the solor controller has adjustable set points. Northern Wind and Power in northern Arizona sells the Battle Born batteries, so when the time comes, Iíll have them look over my set-up.
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Old 04-22-2018, 09:31 AM   #5
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Built in the usa. I am looking doing the same just not sure the cost is justifiable.

Lithionics | Lithionics Battery | Advanced Lithium Ion Batteries
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Old 04-22-2018, 11:01 AM   #6
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Jim, I plan on doing more state forest campgrounds in the future - without AC hookups. Because these batteries can charge rapidly, give about 40% more usable amps for the same rating, last three times longer than AGMs (probably 4 times wetcell), and are half the weight (a huge plus), for me the cost is justified. I'm thinking if you are plugged in most of the time, pretty much any inexpensive deepcycle battery will work while on the road. Just depends how often we want to pull it from the cave to check water or replace them. I need to minimize all that because of some physical "structural" issues. I think the price will come down some in the future and hope these will become optional equipment from trailer manufactuers.
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Old 04-22-2018, 12:14 PM   #7
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I have been weigh the options. There seems to be a scare on the fire issue and I don't know how real that is for the LIFEPO4 batteries. I want to move my batteries inside my coach and the lithium are the only one recommended for that. My wife and I spent 10 days boon docking in a national Heritage site in New Mexico last year and really l liked it. It was in our Escape 19. We have a 180 W Solar panel and 2 Trojan 105 6v. We bought the trailer used so they have 5 years on them. I am not sure what is left. Plus I have a 1990 Sunrader that I want to replace the power center on, as it does not charge the battery. I like PD 4500 series and they now have a special series for lithium batteries. All this started me looking at the lithium. They are so much lighter than the AGM and greater useable capacity. I am really thinking hard about them.
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Old 04-22-2018, 02:32 PM   #8
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Not to hijack your thread, but when I went to my local RV store yesterday to talk about getting a deep cycle lead acid battery he was pretty adamant about the increased performance of a "gel" battery. I'm familiar with little ones for bikes, etc, but to run a camper??? I plan to be depending on my battery system to run a little fridge and a few accessories (LED lighting, charger for cell phone and computer) for up to 4 or 5 days at a time, "helping" the battery with a solar panel. What do you guys think about my best type of battery for this??

Froggie

PS The fridge is one of those camping types from Coleman. Supposed to be a relatively low draw.
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Old 04-22-2018, 04:00 PM   #9
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a couple of observations....

the author of the article is in a boat where weight is a non issue (as opposed to us)

he runs his engine "with big alternator" at least four hours a day....AND he has a generator AND some solar....it almost sounds like he couldn't make up his mind....LOL.....he does consume/need a ton of electrical power it sounds like

good article, thanks for posting
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Old 04-22-2018, 05:44 PM   #10
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As with much of new technology there's early adopters and those that wait. I believe right now is a good time to wait. Battery technology is changing rapidly and tomorrow should bring much better power density, meaning small, lighter, more power batteries. Tesla is working to improve lithium batteries. There's special chargers for lithium batteries (lithium iron or lipro) I have a 2300mah lipro batter and the special charger for it. It's recommended that it's stored at half charge, because of fire potential. It's for a QRP ham radio.

I'm able to do everything I need with my 74AH lead acid battery and 65 Watt solar to keep it charged.
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Old 04-22-2018, 07:58 PM   #11
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I believe they are the battery of the future, but it will probably take a few years for pricing to drop and charging technology to get sorted out. Lots of discussions on these batteries on the Airstream forum. Light weight, long life, can use 100% of battery's capacity (versus 50%), can be mounted in just about any orientation, small footprint.

Another product I really don't understand well enough yet sounds interesting.

https://www.costco.com/Goal-Zero-Yet...100338966.html
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Old 04-22-2018, 11:02 PM   #12
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Originally Posted by ibupnorth View Post
Do you think you will need to change out your charging system when you do the swap? My 2018 Casita sits at 13.8 V when plugged in and I see that the Battle Born LiFe batteries prefer 13.6 V. I've only had my TT a couple weeks and haven't popped the panel to see what I had for a converter/charger and look at specs. I do like your idea and when my AGM goes I will probably be looking at the same change.
When I was on the Progressive Dynamics website the other day looking at this very issue they did not currently have a Lithium compatible offering in the way of a charger that could be used in their converters. They offered links to a company that does offer Lithium batteries and chargers.
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Old 04-22-2018, 11:12 PM   #13
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Originally Posted by thrifty bill View Post
I believe they are the battery of the future, but it will probably take a few years for pricing to drop and charging technology to get sorted out. Lots of discussions on these batteries on the Airstream forum. Light weight, long life, can use 100% of battery's capacity (versus 50%), can be mounted in just about any orientation, small footprint.

Another product I really don't understand well enough yet sounds interesting.

https://www.costco.com/Goal-Zero-Yet...100338966.html
It is an easy product to understand.
That product contains a lithium battery and a solar panel that can be used to charge the battery. Also in the case there are built various types of ways to connect to it. There are USB outlets and it as has an inverter built right into the case for plugging in 110v devices.
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Old 04-23-2018, 12:16 AM   #14
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When I was on the Progressive Dynamics website the other day looking at this very issue they did not currently have a Lithium compatible offering in the way of a charger that could be used in their converters. They offered links to a company that does offer Lithium batteries and chargers.

KC, Best Converters seems to offer Magnetek/Parallax 6300/7300/8300 upgrade kits that are lithium compatable. For others interested, look for the 'L' at the end of part number. For example, PD 4645VL designates it has a jumper switch for use with lithium batteries. I'm new at all this so it's possible I misunderstood something but it looks like they have a 35, 45, and 55 amp lithium compatable upgrades.

PD 4645VL 45 Amp Converter Upgrade, Optional Remote Pendant
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