The battery (2 607 335 280) for my old PSB 24 VE-2 Drill died is now obsolete and since 2017 has not been supplied by Bosch.
I bought a Shentec battery from Amazon but whereas the Bosch one could be removed from the drill single-handedly I found the Shentec one impossible to remove. So much pressure was required to release the locking mechanism that I had to use a Leifheit jar opener and have an assistant pull the drill upwards. I have a photo but can't add it.
Hope this helps.
Shentec Battery