On Fri, Mar 22, 2019 at 06:12 AM, Don Bitters wrote:
The original battery pack was a 3 cell battery Ni-Cad @ 4.5v. Years ago I could purchase similar sized 1.5v Ni-Cad cells and rebuild the battery pack. At this point in time I would simply find a battery pack 5V and under, and wire it in to the to the same placement as the original.
NiCd cells are 1.2 V nominally, making the 3-cell pack 3.6 V, a bit higher while fully charged. This is the correct value for the HP 8566/68 A, I wouldn't confidently put in something like 4.5 V or even above before having a look at the schematics.
Raymond