Apologies Wet Dog don't mean to hijack your ad post just had a ? I thought these all have a soldered in batteries? Think you could let me in on how you replaced the battery in these cause I'm sitting here looking at one that I replaced while back and unless I destroy it I don't see a way to do it?. Know the rebuild doesn't have 1 cause I've brought an done them in the past that just consists of a core, cap an a washer Thanks