@Stethorn I totally understand where you’re coming from! I recommend to give it a try, but I have a feeling that since there is still a battery in the device that it may still not give you the 60 second recordings you are looking for. What you could do is buy the indoor/outdoor power adapter from Amazon or Ring, and if you see that you are getting 60 second recordings, GREAT! If you are getting the 30 second recordings, please do ahead and return the adapter, per the 30 day return policy both companies have, as the device must still be registering that it was battery operated as it was before.
This is the best way, and in a trial and error kind of situation to see what ends up happening. If you explore that route, please come back and let me know so this can be a marked solution for other neighbors to reference in the future! 