fans41561333
 lvl.2
Flight distance : 102507 ft
Singapore
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DroneFlying Posted at 2017-5-14 11:25
The record shows flight time was only 15 mins and 28 secs before the fully charged spared battery was I lost the Mavic to the water. How short the battery life can be in worst case according to DJI's regression tests ? I only see the battery life as 27 mins.
Yes, they only identify the maximum amount of time the battery will last, and that's in "ideal" conditions that few, if any, pilots will ever experience. I don't believe they've ever defined a minimum amount of time and I doubt they ever will because there are too many variables involved such as altitude (above sea level), temperature, speed during the flight, and probably many others.
Yes, I have agreed my mistake for taking risk without understanding the limitations of it. But, I still believe that it is not so difficult to add a few lines of warnings in advance to advise not to rely on RTH button when windy if DJI ever tested that button in wind. This discussion is not about getting sympathy. I bought it and I risk it to do what I wanted. I have paid for replacement set before posting this discussion. I have done my part as customer and I want to make sure this fact of discussion topic is shared and DJI takes some action to prevent similar cases in future. I am sure everyone in this forum owns at least one DJI drone and everyone is DJI's fans including me. I expect to see different nature of comments if I discuss this topic in other drone companies' forum.
Regarding with the battery, I was able to do a few flights with original battery in same windy condition. it was about 700m distance and I can call it back safely against strong winds without using RTH button.
So, it becomes another puzzle to me whether spare batteries can last same as original battery because it was first time using a fully charged spared battery. I myself still trying to understand what are the mistakes I made other than taking the risk to fly in wind. I was so impressed with Mavic in previous day and added more confidence to fly far into the ocean next day. Before I flied far, I tested RTH button and it works perfectly. I misunderstood that as long as I have enough battery, the Mavic's RTH feature will be smarter than manual. I took precautions and called it back when battery is 78% left. Only after getting advices in this post, I slowly understand the limitation of RTH button in wind and I m still disappointed that I didn't see it in manual.
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