Geebax
Captain
Australia
Offline
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Flyhigh7887 Posted at 2015-10-26 03:00
i just had a look through my 150+ flight logs at HealthyDrones. I would say that around 75% of my "flights" are started with below 100% battery level. This meaning that I charge my batteries fully before going out to fly, obviously--- but then when i get the shot that i want, or fly where i want, i land & mess about. after which i fly again on the same battery, usually until the battery is to around 30%. switch batteries & fly on.
i cannot imagine why starting a flight with less than 100% would have any dramatic effect on anything other than your flight time. but hey, this is just my observation.
It is not possible to measure battery capacity of LiPo batteries in real time. The intelligence in the battery monitors the quantity of charge (charge current X time) and calculates the amount of charge put into the battery and also the reverse, the amount of charge used. But this figure is not 100% accurate, so if left for a while, the battery can lose charge. During flight, the aircraft CPU uses the known charge amount to work out, in conjunction with the discharge amount, a value to display on the controller. But it is also monitoring the cell voltage under load and if it gets very low, it can trigger a RTH or even an emergency landing. This is why it is always best to start with a freshly charged battery. |
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