What should be my next LED HP calculator?

[Trond]

They look new to me. Hmm, I should have left it on the charger overnight. I'll put it on the charger now for a good while and see what happens.

In good news, there was an ugly "scratch" in the glass that at first made me go "oh well, old calculator". Then it turned out that the scratch was a tiny bit of glue (or something like that) that I managed to wipe off. Now it looks near mint