It should work fine.Hi, I plan to connect two ST16 batteries in parallell to get longer flight time with the ST16. Will there be any problems, besides the weight of course.
Can you give us a link to the one you use please.There is more simple and less dangerous than to risk a hacking of the battery and the risk of damaging it as well as the radio.
A simple Powerbank plugged into the 15000 or 20000 Mah radio and the discharge is largely slowed down and compensated.
What I do when I leave the day, Powerbank in the pocket and plugged into the radio.