how many cells somebody wants ?

P

paraskevas

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how many cells somebody wants for 48v solar system ? , for 10kw power ?
how many p ? and s ? battery packs ? . thank you very much
 
There are loads of threads/posts that answer this question. It has been answered many times with examples and comparisons and different designs. Also included is a lot information regarding inverters, chargers, wiring layouts, and just about anything else involved in making a 48V system.
 
Korishan said:
There are loads of threads/posts that answer this question. It has been answered many times with examples and comparisons and different designs. Also included is a lot information regarding inverters, chargers, wiring layouts, and just about anything else involved in making a 48V system.
Click to expand...

thanks for you answer
 
If your cells are at 2Ah and 3.7V nominal you need:
10000 / (2*3.7) = 1351 cells

How you then put that together all depends on your system. 48v systems then 14s is common and that would be 1351/14 = 96 cells per pack

ie 14s96p
 
daromer said:
If your cells are at 2Ah and 3.7V nominal you need:
10000 / (2*3.7) = 1351 cells

How you then put that together all depends on your system. 48v systems then 14s is common and that would be 1351/14 = 96 cells per pack

ie 14s96p
Click to expand...

thank you very much sir

a single pack... 14s96p .... 14*96 cells = 1344 cell

a single pack... 14s96p .... 14*96 cells = 1344 cell

for woh many years a diy power wall works ?
 
That all depends on much abuse you put it through and how many cycles they were to begin with. You could get a year, or you could get 5 years or 10 years. Just depends on the quality to begin with. That is probably one of the major reasons for a bms as you can find what cells are starting to fail before they go completely dead.
 
As Korishan said no one really knows. Its like "How long is a string"....


Many cells should do 300-500 cycles but thats generally full cycles. And if you dont do large cycles you may get 2000 cycles. But at same time the total amount of Wh/kWh you get out of them may be the same. So you need to find the sweet spot where you get the most number of kWh out of them
 
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