[RE-wrenches] 24 volt LiFePO4 Battery options

Fri Sep 27 08:35:49 EDT 2019

I believe that the Unigi II  series of cells also has a nano carbon line. Contact Doug Laningham (dlaningham at mkbattery.com) cced above
On Sep 27, 2019, at 8:14 AM, Mac Lewis <maclewis1 at gmail.com> wrote:
> 
> We've installed quite a few GS Nanocarbon batteries and these are available in 24V.  5000 cycles to 70% DOD (we usually shoot for around 50% DOD).   http://www.gsbattery.com/renewable/renewable-energy-slr-series/ <http://www.gsbattery.com/renewable/renewable-energy-slr-series/>
> 
> No problems thus far.  Not cheap but very high quality.
> 
> On Fri, Sep 27, 2019 at 3:42 AM jay <jay.peltz at gmail.com <mailto:jay.peltz at gmail.com>> wrote:
> You might also look at
> 
> https://www.cdtechno.com/pdf/lit/12_1137.pdf <https://www.cdtechno.com/pdf/lit/12_1137.pdf>
> 
> Which is using nano carbon, for 3000 cycles to 50%.
> 
> Other battery companies also have carbon/lead at up to 4000+ cycles for VRLA, and Rolls has 4500 cycles for flooded, both at 50% DOD.
> 
> The UnigyII is tried and proven tech, but low cycle life compared to the newer carbon LA chemistries.
> 
> 
> jay
> 
> Peltz Power
> 
> 
> 
> 
> 
> 
>> On Sep 26, 2019, at 2:55 PM, Jerry Shafer <jerrysgarage01 at gmail.com <mailto:jerrysgarage01 at gmail.com>> wrote:
>> 
>> Howie
>> Understand but the reality is that inverter is going to fail and then it may be to late to make an upgrade and it will be more costly. You might want to consider Deka Unigyll that can be bussed in 24 volts and changed to 48 volts later. No it's not LI but it's a good solution. 
>> Jerry
>> 
>> On Thu, Sep 26, 2019, 2:18 PM Howie Michaelson <Howie.Michaelson at gmail.com <mailto:Howie.Michaelson at gmail.com>> wrote:
>> I get what you are saying Jerry, but this client ( a retiring teacher in a very rural, low wage school district, sadly) has lived very lightly off-grid (1kW solar, 24v Rolls KS21s original batteries) for 18 years years and has no pressing need to upgrade his VFX3524 inverter. I'd rather find a good 24volt option to compare a straight KS21 replacement to.  I know the inverter could crap out at any time, but if it ain't broke...
>> Howie
>> 
>> On Thu, Sep 26, 2019 at 5:03 PM Jerry Shafer <jerrysgarage01 at gmail.com <mailto:jerrysgarage01 at gmail.com>> wrote:
>> Dollars and sence, drop the 24 volt, BPI is a great battery. Once l show my customers all the benefits of a 48 volt upgrade it wins every time. I am not talking about busses, RV's and one night stands l am talking about off grid homes. 
>> 
>> On Thu, Sep 26, 2019, 1:53 PM Howie Michaelson <Howie.Michaelson at gmail.com <mailto:Howie.Michaelson at gmail.com>> wrote:
>> Hi all,
>> I've been using BlueIon batteries recently both on- and off-grid, and really like them so far, although I have limited time on them so not a ton of experience yet.  I am wondering what folks are liking for 24 v LiFePO4 battery options.  I have 24 volt off-grid clients who are not ready to swap out to 48v, but might be interested in Lithium batteries. TIA,
>> Howie
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> Mac Lewis
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> "Yo solo sé que no sé nada." -Sócrates
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