Re: HP-67 Battery Pack Message #2 Posted by Geoff Quickfall on 7 Oct 2009, 6:31 p.m., in response to message #1 by AlbertTocarLoseggs
Absolutely, just a couple of points:
1 you will have to modify the connection as the unit you
mention, the Panasonic HHR-P401 3.6V 1150 mAh has a standard
home wireless telephone plug.
The metal contacts found on the HP-67 match two metal strips on
the original battery pack mount and the Panasonic does not have
these.
2 A better option, if you want to purchase a unit, is to search on
EBay for Classic Battery pack. Check this link for the battery
pack: ebay link
I am not affiliated with the seller but the price is lower and the added benefit of a correct contact not requiring modification.
As an aside I am doing a section on how to modify the classic case to accept the new style battery packs the telephones have. This modification is for the calculators that have been restored but have had severe damage done to the two spring metal contacts found inside the battery compartment. The mod is simply attaching the male receptacle in a milled portion of the battery compartment and then just plugging the battery into the receptacle as seen in modern wireless home phones.
Cheers, Geoff
P.S. the NiMH batteries will take twice as long as the NiCd batteries to charge while using a standard NiCd battery charger. If you use the HP-67 to charge the NiMH batteries be aware of this limitation.
Edited: 7 Oct 2009, 6:35 p.m.
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