Pros and cons of mechanical vs. electronic locks for rentals

[Aubrey P.]

Hi, I'm considering renting a property about 57 miles away on airbnb. I have an electronic keypad in my house, which works great. I basically don't carry keys anymore. It uses batteries, but I have never changed them yet.

However, for this rental property, I am concerned about battery life, as I may not be around to replace it if one stops working and a guest comes. 

Can anyone recommend a good option. Or a reliable mechanical door lock they use?