18 Aug
2001
18 Aug
'01
11:45 a.m.
At 12:39 PM 8/17/01 -0700, Chuck wrote:
Car batteries are not good for a UPS because they are
not "deep cycle"
batteries (that is they don't expect to be drained all the way to zero,
which damages them)
That, plus the fact that plate surface area is maximized for a
very high short-circuit current. In turn, this means that the
volumetric energy density is much lower for a car battery
than for a UPS battery.
Carlos.
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Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org