Panasonic CR2477 3V Lithium Cell Battery (Pack of 2)
Results of our analysis:
We analyzed 120,232 reviews for 425 products in the 3V Batteries category.
We then analyzed 133 reviews for this product. Of these, 24 reviews were recent.
Around 21% of reviews were positive and about 71% were negative.
Final Score:

7.04 out of 10, based on these factors:
What buyers say about Panasonic CR2477 3V Lithium Cell Battery (Pack of 2)
These are batteries, so make sure to put the positive end towards the + and then ask for our opinion after a year.
I'm not sure if they'll last a long time, but I'm happy with them.
It's a good value and works well.
I hope they aren't used before, they're Panasonic branded, but they're not original packaging, so it's a plus.
If you are using replacement ecobee sensors, these are the right size.