14s40p how many ah is ?

Unknown as we don't know what the capacity of the cells are that you are using.

However, only the Parallel cells add to capacity. So, 40*mAh/cell = Total Ah for the whole string. Note, adding 100Ah pack in series to another 100 Ah pack will not make 200 Ah, just double the voltage.


Also, this has been talked about MANY times in the forums. The search tool is a wonderful thing
 
Just a sidenote.

40*mAh/Cell does not give total Ah. it gives total mAh ;) (Sorry Korishan) :)
 
Touch :p

I blame it on my slow fingers not keeping up with my brain ;)
 
I'm still wondering why so many people seemingly have problems with that :D

Capacity of the battery is the capacity of every cell in parallel
Voltage of the battery is the voltage of every cell in series
Energy of the battery is its capacity times its voltage

It is not THAT hard :D
 
DarkRaven said:
I'm still wondering why so many people seemingly have problems with that :D

Capacity of the battery is the capacity of every cell in parallel
Voltage of the battery is the voltage of every cell in series
Energy of the battery is its capacity times its voltage

It is not THAT hard :D
Click to expand...

thank you for your answer. you are very kind !
 
paraskevas said:
DarkRaven said:
I'm still wondering why so many people seemingly have problems with that :D

Capacity of the battery is the capacity of every cell in parallel
Voltage of the battery is the voltage of every cell in series
Energy of the battery is its capacity times its voltage

It is not THAT hard :D
Click to expand...

thank you for your answer. you are very kind !
Click to expand...
Capacity of the battery is the capacity of every cell in parallel :40 ( cells ) * 2000mah ( average ) = 80000 mah

Voltage of the battery is the voltage of every cell in series :14 * 3.7 ( 4.2 max ) = 51.8v ( 58.8v max )


Energy of the battery is its capacity times its voltage :80000mah * 51.8v ====== 80ah *51.8v ====== 4144wh=====41.44 kwh ( minimum )

80000mah * 58.8v ====== 80ah *58.8v ====== 4704wh=====47.44kwh (maximum )

per pack ! , i will build four of them so : minimum ( 4 * 41.44kwh = 165.76 kwh ) , maximum ( 4 * 47.44kwh = 189.76 kwh ) !

is that corect ? , what can i run with this power in my house ? . is this enough energy ?



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Oz18650 said:
"Kilo" is for "thousands", so 4144wh is 4.144kwh and 4704wh is 4.704kwh
Click to expand...

so minimum is : 4 * 4.144kwh = 16.576 kwh
maximum is : 4 *4.744kwh = 18.976 kwh

is this enough energy for home use ?

paraskevas said:
Oz18650 said:
"Kilo" is for "thousands", so 4144wh is 4.144kwh and 4704wh is 4.704kwh
Click to expand...

so minimum is : 4 * 4.144kwh = 16.576 kwh
maximum is : 4 *4.744kwh = 18.976 kwh

is this enough energy for home use ?
Click to expand...

i have over 600 kgr laptop batteries !. i can build easily more packs ( 6 or 8 of them ) , if 4 packs is small powerwall
 
That sounds like a fair amount, but if it is right for you would depend on your power usage.
I think you mentioned elsewhere, are you planning on charging with solar panels?
I guess you would also want to consider what happens if it is not sunny for a few days.
 
Oz18650 said:
That sounds like a fair amount, but if it is right for you would depend on your power usage.
I think you mentioned elsewhere, are you planning on charging with solar panels?
I guess you would also want to consider what happens if it is not sunny for a few days.
Click to expand...

here in grecce we have planty of sunny days . i would buy 9 solar panels 320watt monocrystaline lg and a small diesel generator .
 
We can't give you the answer to that question. Check your energy consumption and then you'll know whether this is enough or not. I use about 5 to 6 kWh per day, but I live alone and not in a house.
 
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