Lifetime of a battery

[Christophe]

Instructive curves on the lifespan (number of cycles of a battery according to the depth of discharge)



Quiz: what are the technological differences between car and solar battery?

Source: solar PV / University of Toulouse

[Bibiphoque]

Hello,
As far as I know, stationary batteries are often alkaline, well this is what I saw on a site where I was doing maintenance qq years ago.
It is not specified in the link?
@+

[Christophe]

Well no otherwise I would ask po! They are just talking about gelled electrolyte or not.

Should look at the source of the source in more detail.

[Bibiphoque]

Hello,
Gelled, it must be lead batteries.
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[Christophe]

Well yes like on the motorbikes ...

That's why I don't understand the difference in lifespan with car batteries ...

[Bibiphoque]

Hello,
Oh! the pretty batteries:

code: Select all

http://www.solarsud.com/index.php?main_page=index&manufacturers_id=2

(have you seen the amps? )
@+

[Christophe]

Nice Ah but the price is also inflated:

Minimum of 6 * 2V 400Ah gelled solar battery (C100) - 5 OPzV 400 Ah € 390.00 = € 2340 for 12V ...

It joins my subject on the Cost of PV to compare to the cost of fossil fuels ... even with fuel at 2 € per liter ...

Let us compare the figures of your "store" with those of the University of Toulouse:

- storage on batteries: 3 6 € / Wc according to stored energy
(about 0,15 € / Wh so 3 € / W is equivalent to 20 hours at Pmax)

A) 0.15 € / Wh

Gelled solar battery 2V 400Ah (C100) - 5 OPzV 400 Ah

B) 400Ah * 2V = 800Wh for 390 € or 0,49 € / Wh

This is 3,25 times what is announced by the university ...

By taking the biggest battery on the same site:

C) 1400Ah * 2V = 2800 for € 1,035.00 or € 0,36 / Wh

This is more than twice what is announced by the university ...

Explanations?

[Bibiphoque]

Hello,
It's not "my" store, it's just "found on the net".
Explanation? Well easy, they make a lot of wheat.
@+

[Bibiphoque]

Hello,
Info:
http://fr.wikipedia.org/wiki/Batterie_au_plomb
http://cat.inist.fr/?aModele=afficheN&cpsidt=180344
http://www.lomag-man.org/batterie%20tra ... nindex.php
http://www.bat4life.com/wp-content/uplo ... ife-fr.PDF

Enjoy your reading!
@+

[I Citro]

Basically, energy storage batteries and starter batteries (automotive batteries) have the following differences:

Starter batteries: very high instantaneous power, reduced weight, does not support deep discharges.

Storage batteries Very high weight, moderate instantaneous power, designed for deep discharges (80% DOD)

Traction batteries very heavy, serve as a counterweight on handling equipment, their characteristics "resemble" those of storage batteries.

Motorcycle (and automobile) batteries are, for the most part, liquid electrolyte batteries, which leak sulfuric acid solution if spilled.

In lead-gel batteries, the electrolyte is in gelled form, requiring no particular maintenance (no level to check) so they can be reversed without danger.
This type of battery is found in inverters, alarm systems, electric scooters and other toys for children as well as in low-end electric assistance bikes.