@xodium I have a perfectly working PB 3400 - so, I am lucky. I tried to find someone who could build a battery for it, but no luck.

@darkcruix @xodium you may want to look for a fablab / makerspace / hackerspaces near your, maybe someone there has the expertise?

https://www.fablabs.io/labs

https://www.makery.info/labs-map/

https://wiki.hackerspaces.org/List_of_Hackerspaces

Labs | FabLabs

A platform for connecting Fab Labs and their users from around the world.

FabLabs.io - The Fab Lab Network
@darkcruix I want to delve into battery refurbishing but alas, time is short as of right now. I totally have the spot welder to get it done, though!