I'm building a 12v system, long story no I can't go higher voltages and yes there are big advantages all round for 48v.
Max current will be 1400w continuous and 2800w spikes.
Ok so I'm building 80p packs 4x20 cells. 33 packs ! So how to wire them?
I've had thoughts of big lugs all in parallel for all 11 packs per serial. Then a lug that will take 1400w into each inverter. Running 2 inverters all up.
What are the advantages of a big pack like this ? I know the disadvantages
Disadvantages
Big amps !
Discovering a bad pack is harder! Just so much parallel goodness 800p !
Efficiency loss.
Insane time to balance - can I still use longmons ?
Loose some range in voltage , eg I'll only go down to 10.5v and 3.5v a cell.
Advantages
Only 3 cells to monitor ! Take a long long time to go out of balance.
Can use my current inverters and solar chargers and all my other 12v stuff.
Cells are treated lightly and cycle volt range is conservative
Just the I'm different and mad factor.
Max current will be 1400w continuous and 2800w spikes.
Ok so I'm building 80p packs 4x20 cells. 33 packs ! So how to wire them?
I've had thoughts of big lugs all in parallel for all 11 packs per serial. Then a lug that will take 1400w into each inverter. Running 2 inverters all up.
What are the advantages of a big pack like this ? I know the disadvantages
Disadvantages
Big amps !
Discovering a bad pack is harder! Just so much parallel goodness 800p !
Efficiency loss.
Insane time to balance - can I still use longmons ?
Loose some range in voltage , eg I'll only go down to 10.5v and 3.5v a cell.
Advantages
Only 3 cells to monitor ! Take a long long time to go out of balance.
Can use my current inverters and solar chargers and all my other 12v stuff.
Cells are treated lightly and cycle volt range is conservative
Just the I'm different and mad factor.