Check out the user manual for the OP's Mini 2 at page 14... or maybe page 47 from a newer Mavic 3 Pro or page 44 from the Air 3S. Look up the chapter Low Battery RTH.
From what I've seen over the years, all Mini, Air & Mavic iterations have it...
That's not entirely correct... before the forced critical low voltage auto landing gets initiated, a low battery RTH will kick in.
The low battery RTH will give you a 10sec counter before proceeding where you can chose to either RTH or cancel...
If you want a more stylish solution (if leaving the C1/C2 as "Not defined" doesn't work)... you can for instance chose below "neutral" settings for the C1 & C2 button
Hi & welcome to the forum.
Probably not... & even if you could get them going with various methods to wake the BMS chip up, they can't be trusted for flight duty.
LiPo batteries degrade with age & use, causing a diminishing capacity, increased...