[RE-wrenches] Battery Experience

[John DeBoever]

Dick,

Yes, correct, partial state of charge.

John



On Jul 9, 2012, at 18:45, "Richard L Ratico" <Richard.L.Ratico at valley.net> wrote:

> John,
> 
> Thanks for that clarification. One question: What is PSOC? Partial State Of
> Charge?
> 
> Dick Ratico
> Solarwind Electric
> 
> 
> --- You wrote:
> Jason, Wrenches,
> 
> Thank you for your patience and positive statements on Trojan Battery Company.
> Last week was a busy and I was away from my desk most of the time with limited
> access to Internet.
> 
> Both the Premium "RE" versions L16RE-A and L16RE-B, and, the Signature  L16P &
> L16H are great deep-cycles lead acid batteries for solar applications. The key
> differences between them are:
> 
> 
> u  The grid is thicker for the Premium "RE" L16RE-A and L16RE-B, which
> effectively reinforces further the frame strength which results into a greater
> corrosion resistance;
> 
> u  There is relatively more electrolyte in contact with the plates in the
> Premium "RE" L16RE-A and L16REB, which enhances the electrochemical reaction,
> particularly during PSOC;
> 
> u  The rubber-based multi-rib geometry separator is approx. 30% thicker for the
> Premium "RE" L16RE-A and L16RE-B, which translates into a longer life of the
> separator. The thicker multi-ribs geometry keeps over time the acid channels
> open longer, promoting the flow of the electrolyte . As a result, the thicker
> separator is reducing the risk of stratification and enhancing electrochemical
> processing throughout the plates, resulting into longer continuous performance
> of the battery.
> 
> u  In the approx. same form factor (except the height), this results into more
> lead per Ah capacity on the L16-RE units nameplate.
> 
> 
> As a consequence, the cycling performances of the Premium "RE" is 1,600 cycles @
> 50% DOD and 4,000 cycles @ 20% DOD. Respectively 1,200 cycles # 50% DOD, and,
> 3,000 cycles @ 20% DOD @ 20% DOD, for the L16-P & L16-H.
> 
> I hope this helps. Let me know if I can shed further light on other attributes
> of lead acid batteries.
> 
> Sunniest regards,
> 
> John
> 
> John F. DeBoever
> Global Technical & Projects Director - Renewable Energy
> Trojan Battery Company
> --- end of quote ---
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