HP Forum Archive 05

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HP-21 and Alkaline Cells Message #1 Posted by Stefan Vorkoetter on 5 Feb 2001, 11:23 a.m. Does anyone know if an HP-21 will operate on alkaline cells, or will the too-high voltage damage it? I'm restoring a 21 for a friend, and he no longer has the charger, so using alkalines would be the best option.

Re: HP-21 and Alkaline Cells Message #2 Posted by Andrés C. Rodríguez (Argentina) on 5 Feb 2001, 12:41 p.m., in response to message #1 by Stefan Vorkoetter I had used alkaline batteries on a HP 25 (not C) wihout problems. It seems that the voltage, while a little greater than NiCd, is within tolerance. The HP 21 should be the same (no warranties!). Please check previous postings and obtain more opinions, to reassure yourself.

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