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Being a tightwad, I go to my local auto electrician, pick up a battery that still
has some life in it for $10-15, and I generally find that it will power my
HEQ5 and a dew heater for a couple of imaging sessions between charges
for 2-3 yrs before giving up the ghost. My last battery spent 6yrs in my
Corolla, and then 3 more powering my scope; cheap power.
If you are powering several power hungry devices, any new small car
battery for about $95 will be cost effective. O.K. deep cycle batteries
are a bit better, but would have to last many years to be competitive
cost wise.
raymo
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