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Old 02-11-2016, 08:59 AM   #1
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lithium-ion battery love affair by some???

Will someone explain the apparent love affair some have with Lith-Ion batteries for RV uses? Why are they willing to shell out 3 or 4 times the $$$ for a power source in their RV? I understand this type battery has been used in PC's, mobile devices, etc for years but even in those applications there were problems in the early stages. More recently were the well publicized fires on jumbo jets and just last year with the hoverboards. I've read they are good at delivering a lot of power for relative short bursts but require special charging procedures and should not be connected to systems that are back fed by a conventional 12v source. But the main negative I see is the cost. The 2nd is the apparent risk of overheating and having these things under a bench or bed in my TT. There are some who jump on new stuff ahead of the general public and people like me who wait for the $$$ and problems to get sorted out of things like HDTV that went from thousands of $$ to a couple hundred after a few years.

Am I missing something?? Why do I feel completely comfortable with my twin 6v cart batteries? Without getting technical, I don't want to know how to build the clock, what time is it in regard to the lith-ion battery craze?
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Old 02-11-2016, 09:48 AM   #2
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1) Less weight for the same power
2) longer life
3) Quicker charging

Check out this page
Lithium Ion Batteries for RV House Systems / LiFePO4 | Technomadia

I imagine lithium will eventually be mainstream. Telsa's already doing it for houses.
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Old 02-11-2016, 10:01 AM   #3
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I'm ready for better battery technology, but I'll be waiting for several glowing reviews of new battery technology from people like those on here, and for the prices to become reasonable, which will likely be a long while. I can't see paying a high $$ premium for a little more power. I think new technology holds promise, but we aren't there yet. There are always the types who want the latest and greatest, even though they end up being beta testers. If we didn't have people like them, we'd never get advance input. I'll let others do the testing for me.

Maybe it will be ready after my first set of 6 volts on the soon to be delivered trailer die out!
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Old 02-11-2016, 04:27 PM   #4
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Originally Posted by Cdash View Post
I'm ready for better battery technology, but I'll be waiting for several glowing reviews of new battery technology from people like those on here, and for the prices to become reasonable, which will likely be a long while. I can't see paying a high $$ premium for a little more power. I think new technology holds promise, but we aren't there yet. There are always the types who want the latest and greatest, even though they end up being beta testers. If we didn't have people like them, we'd never get advance input. I'll let others do the testing for me.

Maybe it will be ready after my first set of 6 volts on the soon to be delivered trailer die out!
Agree in spades. I remember when a 30" HD tv with something like 780p was $5000. Just put a new LG43' led 1080i in my White Hawk for $325. The people paying the big bucks for new stuff end up buying new stuff a couple years later when their original item is totally old news just like plasma TV's. Was just wondering if the regular folks were missing something buying conventional 6v to replace their oem 12v.
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Old 02-11-2016, 04:55 PM   #5
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I'm with you on this one Bassdogs. I'm always one to wait it out. For cars, TVs, whatever. I'm not going to be the early adopter shelling out gobs of cash for untested/unproven technology. So I'll continue to use the "old-school", battle-tested 12V or perhaps even 6V batteries, and anxiously read about the development of LiIon (and possibly other) technology.

That being said, I truly do appreciate those who are early adopters. They're paving the way for the rest of us, working out kinks, and refining as they go. Heck, if I had the money, I might be right there with them...
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Old 02-11-2016, 05:21 PM   #6
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Quote:
Originally Posted by charles_cincy View Post
1) Less weight for the same power
2) longer life
3) Quicker charging

Check out this page
Lithium Ion Batteries for RV House Systems / LiFePO4 | Technomadia

I imagine lithium will eventually be mainstream. Telsa's already doing it for houses.
Very interesting reading Charles. Hope to have better RV batteries some time in the next 5 to 10 years.
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Old 02-23-2016, 04:46 PM   #7
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Increased capacity as well as you can discharge them down to 20% capacity rather than the usual 50% for lead acid. So you get to use more of the available power.
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Old 02-23-2016, 06:06 PM   #8
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So I'll continue to use the "old-school", battle-tested 12V or perhaps even 6V batteries, and anxiously read about the development of LiIon (and possibly other) technology....
Come on Camper Bob.... we have to move on sometime or we would all be using the computers with That good old 10Mhz 8088 processor without the math-coprocessi9ng chip because of the expense. Running DOS, OK you may think this is crazy but my home control PC (still running XP, uses DOS bats that I wrote, HAL doesn't run that great on the old Win7 box)...

.... But in this case I will sit back and enjoy the (2) 6 volt batteries charged by the sun that get the job done. Maybe when they work out all the bugs with the new batteries, the battery management system and they drop about $1500, I may think about it.

By the way the clock on my old NEC 8088 10Mhz mother board still works flawlessly... see below. This is the mother board of my 2nd computer that I purchased in 1984.

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COMPUTER - 8088 Motherboard.jpg  
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Old 02-23-2016, 08:11 PM   #9
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Just sit back and thank the early adopters that allow businesses to continue to operate and drive down the cost of the products.
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Old 02-23-2016, 09:55 PM   #10
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I wouldn't hold my breath for costs to come down much....
Lithium Iron batteries were invented in 2005. A123 Systems, the original mfg. in Michigan tried hard to break into the electric car market, but went into bankruptcy in 2012. The remains were picked up by a Chinese company, where almost all of the manufacturing of these types of batteries is now located. There has been a rise in many Chinese versions, but is unclear whether they are rebrands of the original, complete rip-offs of them, or both. It's your own guess as to how well made they may or may not be.
Suffice it to say, if the Chinese haven't been able to drop prices dramatically by now, it probably will not happen anytime soon....
Lithium Iron (if manufactured like A123 did) are very safe. But they don't quite have the same power output of some of the other types of Lithium batteries (the ones that catch fire!)
Their expected life span is much longer than lead acid. But they do have to be babied a lot more to reach that. ie - if not being used for more than a couple of weeks, they need to be discharged to a specific storage level. They can't be kept out in the cold for prolonged periods. Even once accidentally discharging them to zero can ruin them. The charging systems have to be a lot "smarter" to maintain them correctly. Etc.
Much higher capacity, much less weight, potentially longer life. But at the trade off of cost and greater babysitting.
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