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Old 05-01-2016, 10:13 AM   #1
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Lithium batteries – where to buy?

Hi Guys,

I am planning to install 200-400 Ah lithium batteries. What are the reliable sources of the batteries? AM Solar is too expensive. Another source I found is Elite Power Solutions. Are you familiar with the second one? Can you suggest other sources?

Thank you,

Artur
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Old 05-01-2016, 12:01 PM   #2
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Depends on how involved of an install you want.

Complete DIY, http://elitepowersolutions.com/ is good and several on airforums use their cells (it's what I used). You'll have to get someone to do install or learn a lot and design your system.

Less DIY. AMSolar is more knowledgeable on RV applications, but possibly more expensive. I also like the cell monitoring from elite better, but AMSolar puts together a package with everything you need [except the charger]. Their new batteries looks more interesting. http://www.amsolarrv.com/lithium/

Much easier drop in replacement. I've no idea of the quality of the stark batteries, but if I realized the effort on the DIY I might have more heavily considered this path. https://starkpower.com/ with a charger converter from http://www.progressivedyn.com/lithiu...y_charger.html
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Old 05-01-2016, 12:20 PM   #3
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If I hold out long enough my next trailer will come with them from Airstream.
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Old 05-01-2016, 01:10 PM   #4
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Quote:
Originally Posted by mixedpuppy View Post
Depends on how involved of an install you want.

Complete DIY, http://elitepowersolutions.com/ is good and several on airforums use their cells (it's what I used). You'll have to get someone to do install or learn a lot and design your system.

Less DIY. AMSolar is more knowledgeable on RV applications, but possibly more expensive. I also like the cell monitoring from elite better, but AMSolar puts together a package with everything you need [except the charger]. Their new batteries looks more interesting. http://www.amsolarrv.com/lithium/

Much easier drop in replacement. I've no idea of the quality of the stark batteries, but if I realized the effort on the DIY I might have more heavily considered this path. https://starkpower.com/ with a charger converter from http://www.progressivedyn.com/lithiu...y_charger.html
The PD-9100L charges the LiPo batteries at 14.6VDC……………..much higher than the 14.2 VDC that 'we' (AM Solar) have found top be optimal after extensive testing of a variety of different cells. . No mention of the 'float or 'silent' voltage after that batteries are fully charged either. That might be one of the advantages of being 'took expensive'……as anything we sell or use has been through the ringer, literally and figuratively! Just be careful out there and remember…..YTOU GET WHAT YOU PAY FOR!!!!!

They also might have tailored these units to the requirements of the 2 lithium battery sources that they list on their web site: Stark Power and Relion.

And just for clarification, the "Master Tech" that PD refers to in the same sectarian is not me, but Master Techs, Inc, a wholesale supplier of electronic equipment for the RV industry in Marshall, MI.
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Old 05-02-2016, 11:32 AM   #5
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Thank you Guys! This is helpful.

My reference to AM Solar being too expensive is just subjective matter. This is too expensive for me. I am sure they are providing a good products, but out of my range at the moment.
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Old 05-02-2016, 12:00 PM   #6
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Thumbs up

I purchased mine from Elite Power Solutions, they use GBS cells. The cost savings is pretty substantial. And I've been running these for several months now. We just had a week of nonstop rain and clouds. And I never once had to break out the generator. Lithiums have been game changers for us.

You get what you pay for, but there is a certain level of misdirection on this forum.

That being said, to be fair to AMSolar, since they don't have full details on their site, I can only guess that the Victron system is including the charge controller and inverter all in one. Victron has designed things for tight integration. If that is the case, then the prices are good for retail.

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Old 05-02-2016, 12:41 PM   #7
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Bono, you have broken ground to find us hitch solutions. Now find us a lithium package that works for a price folks can afford. What is your price point? Pat
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Old 05-02-2016, 02:16 PM   #8
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I'm hoping for a form factor similar to current batteries with built in battery management. Stark has those but still too pricey, hopefully more companies will come out with that form factor. Just drop them in and connect the existing cables. I'm planning on upgrading to a Magnum 1000w inverter/charger which has a fully programmable charger. My feel good price right now would be $1000 for 200ah lithium batteries but currently runs about $1900 from Stark. I may have to wait a long time so a couple of new 6v 220 ah will have to do.

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Old 05-02-2016, 02:51 PM   #9
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PKI, there is no real budget limit that I have in mind. The system will cost that much as it needs to cost. I will not try to be cheap with the components. Sometimes I do not see the point in paying the premium. There are more providers of good products. Still trying to figure out the size of the system (panels / batteries).
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Old 05-02-2016, 03:07 PM   #10
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Bono - A valid price point would be value for the investment. At $2K for a pair of G24 Li-ion batteries you see a 10x factor over the Walmart G27 upgrade. Takes a bit of cleaver justification to overcome that delta. Unless of course weight is a consideration, along with storage location, and life span. So far, I can't make the scales balance without a battery price point of around $1K, which still represents a stretch for our utilization profile. Interested to see what you find. Good luck. Pat
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Old 05-02-2016, 03:25 PM   #11
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I need to put the batteries into the trailer. AGM deep cycle are expensive and in a longer run the price difference should not be that significant. Lithium works also better for solar setup and I believe that 80-90% of the cases we will be boondocking (and I am not planning to get generator).
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Old 05-02-2016, 04:16 PM   #12
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I wrote about this on my blog: https://boldandadventurous.com/our-d...-upgrade-pt-1/ - if you are going to source the cells the price comes down significantly. I couldn't source them myself because I'm on the road and don't have time to wait 2-3 wks shipping time from China.
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Old 05-02-2016, 04:39 PM   #13
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Thanks, I will read your blog later today. However, I have noticed that you mentioned costs comparison of 200Ah made from 2x 100Ah vs. 200Ah. I asked about this Elite and they told me that the 200Ah cells are a newer generation and thus more expensive.
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Old 05-02-2016, 08:15 PM   #14
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Chemistry is the same. They have different connectors which are on opposite ends and are in a larger pack and have more Ah per pack. ¯\_(ツ)_/¯ So, define "new generation". They are new. I just kind of felt it was like iPhone 6 vs. iPhone 6s when I looked into the specs. You can find GBS cells sold elsewhere too. And other companies make BMS's.

Pro tip, the DIY EV community has a lot of detailed info on Lithium setups. The RV community is years behind in knowledge. And most of the 3rd party suppliers are catering to the EV community. You could get overwhelmed with youtube videos on the subject too.
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