[Microwave] HP8591A

[J. Forster]

Stefan.Heck@telenor.com wrote:

> On the rear there is a note on an internal battery: The battery was installed
> in 1992 and apparently never replaced. What type and model of battery is this?
> What is it good for? Where is it located? Can I replace it myself?
>
> 73, Stefan (LA0BY)
>
> The battery is likely a NiCd or Gel Cell. NiCds can be reconditioned, but it's
> likely not worth the trouble. Digi-Key will make up NiCd battery packs,
> including the welded cell interconnects and heat shrink tubing, for a
> reasonable price. (Perhaps 1/3 of HP's price) You may even be able to get a
> higher capacity these days.

Can't help on the other issues though.
-John