Hi Eric, While agree with most all your assessments, Can you please elaborate on the "sulfation causes the voltage not to climb?"
This is quite counter to what I have seen and what the battery people say? Thanks Jay Peltz power Sent from my iPad On Jul 23, 2013, at 2:48 PM, eric.bent...@schneider-electric.com wrote: > > Hi William, > > If the SG was 1.26, of course the battery voltage would increase > quickly to >30V (which is high for warm weather, BTW). > It has been my experience that sulfation causes the voltage NOT to climb. > Especially when you have a very large bank, and a > relatively small amount of solar. > Sometimes it is necessary to reduce the bank size into smaller sets to > equalize them and recover their performance. > This method of reducing bank size is also effective to compare performance > and weed out a potentially bad battery. > Systems that have a lot of capacity, with a relatively small amount of > charge current usually creates problems, because > the load demand exceeds solar production. > This results in batteries that operate with partial SOC, which is when > sulfation is most prevalent. With (8) L16s, you have approx > 800Ahrs of capacity (24V bank). It would take significantly more than 8A of > charge current to properly care for a bank that size. > > Rgds, > _____________________________________________________________________________________ > > > Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES > | Technical Support Representative > Phone: +(650) 351-8237 ext. 001# | > Email: eric.bent...@schneider-electric.com | Site: > www.schneider-electric.com/solar | Address: 250 South Vasco Rd., > Livermore, CA 94551 > >
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