I'm not experienced with lights of that series, and I imagine Abtomat (and probably others - particularly if they have the same light) have 'forgotten more than I'll ever know' about them, but just one question. If the "sleeve" is still intact / OK, if you check the AC power supply / charger unit itself, is there perhaps a SL part number (usually 5-digits) marked on that module? I can't resolve it from the photo, but it looks like there might be on that one. If that piece is common to other models, that part number is what I'd want if I was searching for a replacement for that piece of the setup. I know you said it's pretty well 'shattered', so if it has one it might not be readable from the pieces, but thought I'd ask. If someone else has the same light, they might be able to read the part number from theirs, and if it's common to other lights, that part might still be available / findable.