Dave Hale wrote:
> There's a ThunderSky list? I'd be curious to check it out; can you
> give a reference? Any other battery lists like that?
http://groups.yahoo.com/group/ThunderSky/
There probably are other battery lists, but none I'm aware of.
> How do you define a cycle, and how do you measure your 50% ?
A discharge-charge cycle. Assuming capacity of 260ah (though it's easy
to argue that the capacity is 280 or 300 ah), 50% would be 130ah.
As measured by a TBS meter. Our trips have mostly been about 60 miles
and used about 120 ah. I consider our "fuel economy" to be about
2 ah/mile though about 1.9 is probably closer.
In case you're not familiar with the TBS, it accumulates amp-hours
rather than watt-hours. So, I quote what the TBS tells me. You set the
TBS to zero and "full" after a charge, then it accumulates ah as they
are used. When charging, the TBS accumulates back to zero or very near.
There is rarely ever a need to reset the meter to zero after the initial
zeroing.
--
Willie, ONWARD! Through the fog!
http://counter.li.org Linux registered user #228836 since 1995
Debian3.1/GNU/Linux system uptime 57 days 17 hours 01 minutes
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