Thanks for the info. I'm getting my safe tomorrow and it has the same set up as you describe.The grips I made for the ppk were getting a little loose. There's only one screw that goes from one side to the other, and the grips recess into the frame to keep them steady. Over time, and less than stellar fit to begin with, they've worn and I was bugged enough to fix it.
Rather than fashion a new set, I decided to coat the grip frame in vasoline, and place 2 part epoxy on the inside of the grips to provide a perfect recess into the frame. It worked great. The panels popped off of the frame after a couple of days and they are rock solid when tightened down. I just had to trim down the excess a bit to ensure the magazine still dropped free.
This is where the batteries come in. I've had my current gun safe for about 6 or 7 years I think. It has a keypad combo to unlock, and it runs on (4) AA batteries with a key backup. It's been flawless - except for last night when I went to get the Walther out of the safe to finish the grip fitting. I pushed the first digit and it froze. Just dead batteries, fixed it with a new set, but it occurred to me that should I need to get into that safe in a hurry, that would have been the end of that. I'd be bringing a knife to a gunfight.
I'm sure everyone changes out their smoke detector batteries, but if you have a battery powered safe, perhaps changing those out more often than every 6-7 years is in order too.