M2P vs MP1 Disconnect/RTH

[HawkEye76]

I doubt the 15% caused the cell collapse. Cell collapse can potentially happen at any time, which is why displaying the lowest cell voltage next to the battery percentage is highly recommended in GO 4, like above. I had a P3P battery shutoff when the app reported 87% remaining within 15 seconds of takeoff. It dropped from 200 feet straight down, 10 feet away from me, as I had ascended straight up. Dodged a bullet!

Agree, what I meant was that the reported battery left was 15% at the time one cell gave up. That cell was down on 2.x V. Don't remember excactly. I now have batt voltage displayed in the app as well.

 

[GadgetGuy]

Agree, what I meant was that the reported battery left was 15% at the time one cell gave up. That cell was down on 2.x V. Don't remember excactly. I now have batt voltage displayed in the app as well.

Great! Don't be afraid to take the batteries down to 10% or even below, as needed. It won't harm them, and certainly won't make a good battery go bad. However, topping off batteries before flight is essential to rebalance the cells, so that 10% still keeps all 4 cells at 3.65V. BTW, 0% is still 3.55V per cell! The voltage displayed is the lowest of the four cells.