8
votes
At what per-cell voltage should I land?
I start my landing approach when the average cell voltage reaches below 3.5V on a stable flight (not counting voltage dips on short, aggressive maneuvers).
At that point, you should still have enough ...
- 111
7
votes
At what per-cell voltage should I land?
I have found that landing based on voltage is inaccurate. For example, if you look at the voltage in the OSD while you have the stick at full throttle, the Voltage will be lower than if you had it at ...
- 1,226
5
votes
What are the usual engineering considerations for a UAV current sensor?
Is the shunt resistor usually mounted high-side (i.e. at the positive battery terminal), or low-side (at the negative terminal), and why? Does it matter?
There should be no significant difference ...
- 6,026
4
votes
At what per-cell voltage should I land?
My personal strategy is to use both voltage and mah as guides. For a 1300mah battery, I'll fly around and if I notice I've used up 1000mah I'll come in and land. However, if I'm flying around and I ...
- 751
4
votes
At what per-cell voltage should I land?
You want to keep the battery voltage above 3.2 volts per cell (so 12.8V for a 4S pack) to maximise the lifespan of the battery. Remember that's the voltage once you've landed; you'll need to plan to ...
- 6,026
2
votes
What are the usual engineering considerations for a UAV current sensor?
Using PM07 power management board from Holybro as an example. They use shunt resistor on the high side. Voltage across the shunt resistor is then fed into the Texas Instruments INA169 current sense ...
- 411
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