Mark The Droner
First Officer
Flight distance : 2917 ft
United States
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One other point...
My understanding is, the percentages read out that we see on our apps have been mucked with over the years as the more modern Phantoms have been released. My understanding is, 0% on the old P2 batteries was very close to actually being 0% of useable power. 8% was 8%, and so on. But to prevent the idiot public from flying too far and crashing their DJI drones, DJI made slight changes in the percentage readings with the P3 and P4 batteries. So 8% on the read out was actually more than 8% of useable voltage. 0% was actually not 0%, it was more than 0%. This minimized the number of crashed drones and also made it harder to damage the batteries by flying them too low. But this meant DJI had to lower the deep discharge rate, because the so-called calibration isn't triggered unless the battery power is discharged low enough. Hence, the recommended bottom discharge percentage for maintenance dropped.
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