Tom: To answer your question below: because it would only be 2 volts.
Best case: for a 48 volt system you need 24 cells, period. This way they are all in series and not separate strings. In separate strings, one string will be dominant and others will be subsidiary, over time.
The benefit of the 2 volts cells is price. There may be another benefit: While there are really three strings in each case, the connections are factory and maybe not prone to imbalance. This is the answer I am searching for. Only experience can tell us this, I think.
Wm At 12:08 PM 10/8/2012, you wrote:
why don't they just make a big 1110 AH cell?
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