What is the best battery option for Rak811 Module?

I want to make some sensors with Rak811, what is the best non-rechargeable battery option?

I used Coin CR2450 for testing. Interestingly, it worked about 20 hours with 1 min interval. The rated voltage is 3 for this battery which is lower than requirement for rak811 module (3.15). How it worked is another question, if 3 volts is OK then can I use 2477 Coin battery?