longer cycle life since lifepo4 is like 3500 cycle and gel i guess 2000 cycle?
LROBBINS wrote:Rachi's chair has 205 AH. The LiFePO4 are charged once very week or two.
yeshelp wrote:hello Everyone,
I need to replace my batteries for quantum6000z and i look at the prices and i wonder what would be the better choice and what to consider cause probably there is stuff i ignore.
So i look at MK24G-FT 322 each so 644 . here
https://www.batterystuff.com/batteries/ ... -g-ft.html
I also look at EVE LF105 Grade A Cells - 3.2V LiFePO4 105Ah Battery at 39 each so total 624 usd.
https://www.18650batterystore.com/en-ca ... /eve-lf105
I read couple years before i thing it was in Burgerman's headway blog post , that it was said kind of you need more AH of LIFEPo4 to in order to .... i dont remember .... compared with gel. it was a bit of mathematics calculation . Is 105 AH lifePo4 more km comcretely than a 75 Ahour Gel ? Or would you go more far with the 75 Ahour gel?
Im not even sure if the comparison was about independence or rather kind of in order to have better life cycle than gel you need more LIFEPo4 AHours. Not sure of what the trick was.
what do i need to consider because just looking at 105 and 75 one can jump to conclusion that the 105 lifepo4 will both give more km independence and longer cycle life since lifepo4 is like 3500 cycle and gel i guess 2000 cycle?
how much trouble is it to assemble thoses life po4 in a battery and how much regular monitoring of the cell level does that imply approximatly ? do you have to verify every year or every 6 month? how long does a verification takes and is it very much longer if there is indeed balancing to be maid. I mean time is money in a way if it is not worth it to give myself complication i would like to know because GEL is simpler .
How much more do you get by going LIfepo4 , what is it that you get and what is to respect to get it ?
sorry for multiple questions , i try to figure out if it is worth it .
Thanks
i guess 2 of this rocksolar battery is as simple as gel but more expensive than the evecells. Still the same questions apply to those ones . 2x563 us dollar =1126 wich represents 2 sets of gel (4 batteries) not sure it is worth it . what do you think about my puzzle?
https://rocksolar.ca/products/rocksolar ... um-battery
Re: how do LIFEPo4 Ahours compare to GEL Ahours?
a i would like to hear you on the process of assembling testing balancing compressing time estimate if it is the first INITIAL ASSEMBLY RESEARCH TIME so learning is to do.?
B once assembled, i know a down side of lifepo4 is that you have to regularly cheak test and maybe balance the cells. how coomplicated is that , what is to do , how often and approximate time it takes to do it.
C the gear needed to assemble balance maintain compress cells like this.
THat is for new cells...
----------
For Grade B cells i imagine it is even more work but how much more how does that translate?
Also What does this grade B imperfection means? cell with high resistance or going out of balance or leaking ?.
Burgerman wrote:.....
All you need here (not the multimeter) to charge anything.
At 40A or less.
shirley_hkg wrote:Burgerman wrote:.....
All you need here (not the multimeter) to charge anything.
At 40A or less.
So with those you can test them individually by using the same hobby charger to charge, then discharge, then recharge and read off the ACTUAL capacity t
does that mean that you never test or do a more powerfull(or longer) balance maintenance every year for example or every x period?All hobby chargers balance cells automatically every time you charge. So the same charger you use to charge it will also do that
can you do that
So with those you can test them individually by using the same hobby charger to charge, then discharge, then recharge and read off the ACTUAL capacity t
all with those 3 machine on the picture? how to do you discharge a cell and calculate its capacity?
All hobby chargers balance cells automatically every time you charge. So the same charger you use to charge it will also do that
does that mean that you never test or do a more powerfull(or longer) balance maintenance every year for example or every x period?
From what i remember of what i read a while ago, charger's balancing capacity are tiny and not enough to prevent a pack to avoid disbalancing if it was getting out of balance espacially if the pack is not from new grade a cells.. do you have this experience?what do you think?
shirley_hkg wrote:Burgerman wrote:.....
All you need here (not the multimeter) to charge anything.
At 40A or less.
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