Tech Support > Computer Hardware > Handhelds & Wireless > HP-35 Battery/Charger question
HP-35 Battery/Charger question
Posted by sraasch@yahoo.com on February 3rd, 2005



I've heard that the HP-35 will not operate from the charger without a
battery pack installed.

Is this true?

TIA.
-Steve

Posted by Paul Rubin on February 3rd, 2005


sraasch@yahoo.com writes:
No. It will operate from the charger, IIRC. You're thinking of the
HP-21/25/etc. series which use the batteries as a voltage regulator.

Posted by Eric Smith on February 5th, 2005


sraasch@yahoo.com writes:
No. It will operate from the charger, IIRC. You're thinking of the
Which means that on the HP-21/22/25/25C/27/29C, if you attempt to
operate the calculator with the adapter but without a good battery
pack installed (and making good electrical contact), the electronics
of the calculator will be damaged! :-(

This saved HP perhaps around $0.25 in manufacturing cost. :-(

Posted by sraasch@yahoo.com on February 8th, 2005



Great. Thanks for the information!

-Steve



Paul Rubin wrote:


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