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Leaving overhead light on . . . 200 1989

For your info. CCA != amp-hours.
.
CCA means cold cranking amps, which represents the maximum
_instantaneous_ current draw from a fully charged battery at a given
temperature (0*C?)
.
amp-hours represent energy capacity - how many amps can be drawn from
a charged battery for an hour to discharge it...
.
Most batteries are 60-80 amp.-hr in capacity, which means that to
discharge them by 10%, you'd have to leave the dome light on for
12-16 hr.. Still a long time, just not *quite* as long.
.
-b.






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