+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html)
+--- Forum: General Forum (/forum-4.html)
+--- Thread: HP Voyager series calculator battery query (/thread-20218.html)
HP Voyager series calculator battery query - HP-12C - 07-23-2023 10:46 PM
Hi
Are the CR2032 cell or LR44 cell batteries used in the HP Voyager series corrosive?
Or are there different types of these batteries that are and are not corrosive?
I am just concerned if batteries should be left for long periods of time inside my HP-12's
Thanks for the help
RE: HP Voyager series calculator battery query - Steve Simpkin - 07-23-2023 10:58 PM
I would recommend “357” Silver oxide batteries over the LR44 Alkaline batteries. They last longer and I have never seen a 357 battery leak. I don’t recall seeing a CR2032 or any Lithium coin battery leak. As always, stick to good name brand batteries.
RE: HP Voyager series calculator battery query - brouhaha - 07-23-2023 11:27 PM
(07-23-2023 10:46 PM)HP-12C Wrote: Are the CR2032 cell or LR44 cell batteries used in the HP Voyager series corrosive?
Very old Voyagers use three button cells.
Silver oxide are best: 357 or SR44
Alkaline will work: A76 or LR44
Old Voyagers use one coin cell, CR2032.
Newer Voyagers use two coin cells, CR2032.
RE: HP Voyager series calculator battery query - HP-12C - 07-24-2023 12:22 AM
Thank you both for the responses, it is very helpful as I am about to change out the batteries in several units.
RE: HP Voyager series calculator battery query - rprosperi - 07-24-2023 02:45 AM
I agree with all of the above advice, but emphasize using good/best quality batteries such as Energizers; I've also heard Varta are good. But note that I've personally seen every type of battery mentioned leak over (sometimes much) time, with the unique exception of Silver-Oxide 303/357 Energizer batteries.
2032 battery leaks are fairly rare, but it does happen in long-ignored devices. LR44 are similar, but they can and do leak, though typically leaking much less 'gunk' than common cheap alkaline cells.
Spend a bit more for good quality cells, your devices will appreciate it and are worth it.