Thank you for the information and the response.
The model # suggests that you do this:
When you used a 9 volt battery externally, was it like this procedure (for your model of safe):
Open the silicone cap found on the side
of the lock.
Insert a 9 volt battery into this slot.
Touch the keypad to wake up the safe.
Enter your five digit code.
Turn handle to open safe.
(DO NOT use rechargeable batteries or any other type of
non-alkaline battery, for this purpose.)
? Was this what you tried? if so, what result did you get? did the keypad light up, did the entering of your code result in the green 'proceed' light?