The Museum of HP Calculators
HP Forum Archive 01
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|HP-25 Battery Pack|
Message #1 Posted by Alan on 1 Nov 1999, 10:59 p.m.
I would like to rebuild my battery pack, but have two question: 1. The information from this web site says the HP-25 is designed to operate on 2.5V battery power. The only NiCads I have seen are 1.2V. Will two 1.2V NiCads supply the correct voltage for the HP-25? 2. When I disassemled the battery pack, there was a small metal bar connecting the batteries. Is this bar necessary for the HP-25 to operate properly? If so, where does the bar go? Against the springs in the battery pack or at the other end?
Thanks in advance, Alan
|Re: HP-25 Battery Pack|
Message #2 Posted by Viktor Toth on 2 Nov 1999, 2:05 a.m.,
in response to message #1 by Alan
2 NiCd cells is precisely what the HP-25 is designed to operate upon.
The metal bar is not really necessary, the springs connect the two cells just fine. If you want to do a real nice job, however, buy NiCd cells with solder tabs; you can then solder the two cells together to ensure a good connection, and rip the solder tabs off the other ends.
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