Battery Cycle Life Ratings [RE-wrenches]

[Ray Walters]

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The numbers from my Trojan brochures are T105 750 cycles to 100%DOD. L16 
(from chart) is about 600 cycles. My supplier claims no difference in cycle 
life between the L16 and the L16HC. I'm skeptical.
Come on ya'll, No one has any confirmed numbers on the IBE, Surrettte, 
Yuasa HUP, GNB, etc.? How can I justify to my customer spending triple the 
$$$, if we don't know for sure its gonna last three times as long?

Ray

At 10:20 AM 11/1/2004, you wrote:

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>>
>>  HC's are notorius for being short-lived. The standard L-16 is way 
>> better for longevity and should be as least as good as a T-105. After 
>> all, it has more lead.
>
>That is good to know about the HC.  One bank that died was definitely not 
>HC.  In other systems, I've seen standard L - 16s not lasting anywhere 
>near the 10 year rating.
>
>Didn't Sandia do a test of L-16s several years back that demonstrated that 
>they did not really live up to their advertised potential?
>
>I've found the T-105 batteries to be incredibly tough.  I agree that they 
>are too small for big systems.
>
>Drake
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Ray Walters
ray at solarray.com
President, SolarRay, Inc.
NABCEP Certified Solar PV Installer
BS Mechanical Engineering, UT Austin 88
Returned US Peace Corps Volunteer 

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