Quoted from Nokoro:
I posted this in the WOZ club thread but figured I would post it here as well:
I finally decided to change my battery today and followed the instructions in the manual. As usual, I typically find things about 10x harder than the average pinsider. I put a strip of masking tape on the battery to lift it out but couldn't figure out how to pry the battery from its holder. As I was trying, I failed to notice the fast whirling fan blade to my left and sliced my finger. Luckily, it was a clean slice, and I only bled a little over my boards.
Anyway, I finally did it. Here are some tips:
If you have the playfield lifted all the way up, you will be at an awkward angle. Instead, have the playfield pulled out to the second position on the service rails.
There is a little metal tab on the bottom of the battery holder (side closest to the player). Gently, pull that back, and the battery will lift up with the tape without you needing to pry it up (read the manual for what to do with the tape).
Mind the fan blade! It stings.
Thank you SO much for this info! I was having similar difficulty removing the battery from my Hobbit since there was simply NO way the tape adhesive alone was strong enough to pull the battery out from the holder. Your tip about pulling back the small metal tab was a life-saver and made the removal extremely simple! IMHO, JJP should really consider adding this very important step to their battery removal instructions. (I was about to take more drastic steps which could very well have ended up damaging something, but thankfully I remained patient, and a quick internet search led me to this thread and your solution).