I went and did some flying today, for the first time in almost a year. Being painfully aware of my limitations I set everything to beginner and took it slowly. Managed to get four flights before the battery started to warn me it was getting low, but not too surprised as it was about 6 Degrees.
I misread what I was seeing on the DJI Go 4 app and thought it was telling me that the battery and the controller were low. So I landed, packed up and headed home. Turns out that it was my inexperience with what I was looking at because the controller was still reporting 80% when I put it on charge. That’s a lesson I will need to learn because I actually had another two fully charged batteries with me, so could have landed, changed the battery and taken off again.
It raised the question that the controller then is the weak link in flight time availability, because if the drone battery runs low you can just land and swap out the battery. As far as I am aware you can change the battery in the controller, so need to recharge it before being flight ready again.
The question then is, is there a general preference in the forum for a mobile (in-car) charging solution for the controller and is there some kind of “fast charge” solution?