Batteries for HP-42S

[Thomas Okken]

(04-10-2017 08:05 AM)Dieter Wrote:  As already recommended: get silver oxide batteries. These have a higher capacity, they provide a more constant (and thus on average higher) voltage, and they do not cost much more. Regarding cost: does it really matter if you pay 1 or 3 $/€ every few years? Simply visit a local store where this type of battery is known to be fresh and get some there.

I found a seller on Amazon that sells Energizer 357 in packs of three for $7 including shipping. Since I live in a smallish town where exotic batteries cannot be found, that seems like the right deal for me. If they work out, then maybe next time I'll get a pack of six, but then again, if they work out, I won't *need* any new batteries for several years. :-)