thehippoz
Second Officer
United States
Offline
|
Probably a dip in voltage while flying in sports. I wouldn't worry about it too much. I haven't seen that yet but batteries sagging does happen from time to time. When dealing with it on a adc, you'll usually set a few checks (like 7 or 8) over a short time , and if the voltage is low over those 7 or 8 checks, that means the battery needs charging and sound an alarm. I assume you were low already when you did the 300 ft in sports. I really wouldn't worry unless it happens while full charge. That's indication one of the cells is out of balance with the others, it acts like a vampire.
There's 3 cells inside in series. If one of them is lower in voltage than the other two, it starts charging itself. So the other two batteries are stressed into supplying both the ac and the battery that's out of balance. That's why you always want to put lipo of the same capacity and charged the same voltage in series. Maybe one cell is a bit off the other two. I would discharge it to 10% and charge back full 3 times. Called refreshing, and it helps bring back capacity in older cells.
|
|