Marc70 said:
Just took it out, flew ~6 min, then red flashing lights.
First level protection 10.7, loss:0.00v, loaded: 10.7v
Second level protection: no load: 10.6v, loss:0.00v, loaded:10.6v
Yet my battery shows 11.3 v on software and multimeter.
Is this right?
I was hoping to get my ~8 min flying time back. Those 8 min were with a gopro hero with case, this 6 min is with hero3 with case, which should be lighter.
Thanks to all who can help me here.
A couple of things could be at play here:
1. What is the full weight of your Phantom with everything attached, as you would take off (the "all-up weight")?
2. You mentioned it was snowy. Are you flying in extremely low temps? Batteries don't do cold very well.
Are you measuring 11.3v on the multimeter IMMEDIATELY after the flight, or 5-10 minutes afterwards? If immediate, then that indicates that either 1) your NAZA voltage reading may be off, load up the Assistant and calibrate the voltage to what is being read by your multimeter, or 2) you've legitimately got a 0.6v line loss, which isn't out of the ordinary, depending on battery health and how you fly (and again, temperature affects it). If you're flying balls to the wall, and landing immediately when you see the red flashing, you'll definitely have more power left as the battery drops voltage more quickly when you're heavily loading the motors (but it springs back when you're unloaded).
We've been talking about the Assistant a lot, but the way I gauge my battery usage and health is to finish my flights with 10.9v showing up on the multimeter immediately after landing. If that's the case, my charger puts back the recommended 80% back into the battery. If you've done everything above and are still ending flights at 11.3v unloaded, you could consider throwing the low voltage alarm to the back of your mind, fly via timer, and check the voltage after every flight to make sure you're in the right range.