Wayne,
First, let's hope you mean 12 of the 2YS31. A single battery string is always
preferable to multiple strings in my book. The only downside is interconnect
cables the same size as your inverter cables. That probably means 4/0 CU for
most 24V, 3KW and up inverters. Two strings in parallel-not too bad. Three
strings- as far as you want to push it. More strings- Don't go there.
Bob-O
On May 31, 2011, at 2:49 PM, Wayne Irwin wrote:
Hello Esteemed Battery Gurus,
Which of the following do you believe is the better 24 V battery bank?
A) 13 - Rolls 2-YS-31 2430 AH @ 20 HR (one string)
or
B) 9 - Rolls 8-CS-25P 820 AH @ 20 HR (3 strings of 3)
Thank you in advance for your input!
Wayne Irwin, EE
Director of Engineering
Pure Energy Solar International Inc.
State Licensed Solar Contractor
License # CVC56695
wa...@pureenergysolar.com
http://pureenergysolar.com
352 377-6527 Office
352 336-3299 Fax
352 316-1637 Cell
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