Lithium Iron Phosphate (LiFePO4) batteries what to think about it?

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Forhorse
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Lithium Iron Phosphate (LiFePO4) batteries what to think about it?




by Forhorse » 28/10/09, 15:56

Hello everybody

Following my project I am still looking for a supplier of PV solar material.

Yesterday by chance I came across a reseller who offers Lithium Iron Phosphate Batteries (LiFePO4) and the additional cost compared to the classic lead battery is it worth all the so-called advantage of this technology.

Besides, I don't know this new type of battery at all, what does it actually bring to an autonomous solar installation?
What is their environmental aspect?
unless it is one more scam?
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by bitenbois » 13/07/12, 18:18

bijour

I bring up this subject
I also wonder about this type of batteries
and maybe someone here has already used LiFePO4 batteries with photovoltaic

on alibabba we find cheap, much less heavy, transportable by plane, lifespan 8/12 years ... etc full of advantage seems t
I don’t put the link not being sure I have the right to do it

on other fofo, we talk about the risk of explosion, the need to have a specific charger (which costs an arm)
the impossibility of connecting several, batteries (parallel? serie?)

What is it really?
please
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by chatelot16 » 13/07/12, 18:27

lead and lithium batteries have the same problem: they destroy outside their authorized operating voltage

only difference, with lead destruction is safe ... with lithium it can explode

conclusion lithium batteries are always installed with well-made charger, and it makes them last a long time ... while lead-acid batteries continue to look bad because they are used without a good charger

I find that for fixed installation lead remains the best solution
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by bitenbois » 13/07/12, 18:51

thanks for the reply chatelot16
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by Obamot » 13/07/12, 19:19

Lithium Iron Phosphate (LiFePO4) batteries what to think about it?


We talked about it a lot in this thread, from there:
https://www.econologie.com/forums/bricolage- ... 58-70.html

Insistence was given on all the details. It's already a good approach.

Yes, it seems to be good batteries weight / performance / cost ratio
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by bitenbois » 13/07/12, 20:49

thank you obamot also for your answer
this topic on electric cars doesn't really help me

I will clarify my questions
I have 2 charge regulators 1 classic and 1 type mptt
is it good to charge these batteries?
must they have a particular function or other special characteristic?
I suppose that with an appropriate charge regulator I should be able to connect at least 2 these batteries (then that this is done on bikes and electric cars)
my second question is this: is it safe and expedient to buy several of these batteries? for parallel or serial connection

please
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by Obamot » 13/07/12, 21:16

There is the answer in the other thread. We can not charge this type of battery lightly, it is very sharp. You need the appropriate charger for the battery which comes with amha.

Now if the type of charger you suggest works? No idea. But surely someone will answer you ...
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by chatelot16 » 13/07/12, 21:34

mppt it is not a quality of the battery charger ... it is a quality of the operation of solar cell to draw the maximum power from it
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