OK, I've been hearing for years now that one battery string is best and
maybe two but no more should be used.
What is the reason for this fear ??? What is the experience with
multiple strings in parallel ??
If it is because of current sharing of the strings, that shouldn't be an
insurmountable problem if the wiring is done right.
If it has to do with the possibility of fire, which Darryl mentioned,
seems that series string fuses could mitigate the possibility of that
issue, if because of shorted cells, just like PV combiners.
Or maybe it has to do with the trouble of getting into the middle of a
pile of batteries ? Use battery boxes ?
The strings are in parallel and so they all get the same voltage,
theoretically anyway if the connections are good.
I would think that the more strings, the LESS stress on individual
batteries, not more. The current in each battery should be less than it
would be I would think.
So what is the real experience ??
Is a battery balancer the answer ??
Thanks,
boB
On May 31, 2011, at 8:23 PM, "Wayne Irwin" <wa...@pureenergysolar.com
<mailto:wa...@pureenergysolar.com>> wrote:
I think the verdict is*12* - Rolls 2-YS-31 2430 AH @ 20 HR (one
string) and one dry spare in storage is the best case scenario!
Wayne Irwin, EE
Director of Engineering
Pure Energy Solar International Inc.
State Licensed Solar Contractor
License # CVC56695
wa...@pureenergysolar.com <mailto:wa...@pureenergysolar.com>
http://pureenergysolar.com
352 377-6527 Office
352 336-3299 Fax
352 316-1637 Cell
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