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Adapting cell battery to HP 41
08-04-2020, 01:13 AM (This post was last modified: 08-04-2020 01:14 AM by Craig Bladow.)
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RE: Adapting cell battery to HP 41
Turns out that LiFePO4 cylindrical cells (3.2 volts each) are available in the same size as an AA battery. I quickly popped out my HP-41CX battery back and two alkaline AA cells fit in to the compartment with room left over.

CC41 coming soon!
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RE: Adapting cell battery to HP 41 - cruff - 02-26-2019, 12:45 PM
RE: Adapting cell battery to HP 41 - Craig Bladow - 08-04-2020 01:13 AM



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