Re: Replacement for HP-35S Message #3 Posted by Karl Schneider on 5 Dec 2010, 4:25 p.m., in response to message #2 by bill platt
Quote:
33s. It might use less (battery power). Anyone know?
I suspect that the HP-33s actually uses more power and discharges its cells faster than the HP-35s. The 33s runs faster, and uses the same two Type 2032 cells in parallel. I've noted that battery replcement is more frequent than expected, even during non-use.
Only the old-school HP-41, Voyager-series, and Pioneer-series models had astounding battery life. Those of that group that kept "wall time" -- HP-41CX, HP-41 Time Module, HP-27S, HP-17B/BII -- will have much shorter battery life due to the running of that clock, even while the calc is turned off.
-- Karl
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