So I've had the Mini 2 for just about a year now (Apr. 6, 2021) and have been keeping track of all my flights in Airdata and an Excel file.

Airdata is super handy for the map and notifications. Excel allows me to do statistical analysis and formulas on the data.

Anyway, I've been particularly interested lately in how much less battery life my batteries have after 1 year of use. Here is the data:
  

Battery ID	Total Flights	Total Duration	Average Duration	First 10 Avg. (%/Min)	Last 10 Avg. (%/min)	First/Last 10 Diff.
Bat-1	70	14:45:19	12:39	4.32%	5.21%	0.89%
Bat-2	72	14:18:47	11:56	4.99%	5.19%	0.20%
Bat-3	72	14:08:04	11:47	4.58%	4.98%	0.41%

As you can see, I've tried to keep each battery roughly balanced in use. I try to not let the batteries get below 10% and am sure to not store them at full charge for longer than a couple days. With the exception of 1 or 2 flights, I've tried to not fly when the wind is above 7 or 8mph. I'm also at 5,100 feet in elevation in a mostly dry climate.

Honestly, I expected more of a difference but I'm pretty happy with the results.

Edit: Fixed(ish) table formatting.

Thanks for the number crunching - interesting to see

Hello there blue_canyon21. Good day and thank you for sharing these interesting information with us about your DJI Mini 2. Have a safe and a happy flying always.  

I thought the recommendation was to not drop below 20-25% battery for optimum life,  but at 10% that seems fairly good too.

Thanks for sharing this interesting data.  

Thank you very much! That looks promising!

DAFlys Posted at 3-30 00:04
I thought the recommendation was to not drop below 20-25% battery for optimum life,  but at 10% that seems fairly good too.

When I first got the Mini 2, with it being my first non-toy drone ever, I did a lot of research and didn't really find any definitive recommendation for DJI specific batteries.

However, I did find a lot of recommendations for LiPo batteries in general saying that between 10-15% was a good spot.