Min LiPo voltage

[choppertastic]

I have a radio with telemetry on it and I was looking at setting a voltage alarm on the telemetry so I know when I've got to land. If I'm running 3S batteries then what should be the minimum voltage I should let it run down to? (or is there no simple answer )

[Audi_TT 83]

i personally would never let mine get below 3.7V per cell, but i tend to leave them at 3.80 per cell. so i have an alarm set that will go off at 3.85 giving me more than enough time to do another circuit and come down gently. so for me it is 11.5V on a 3s pack as it should have been 12.6 when you started. hope this helps

[cjcj1949]

It depends a lot on how hard you fly and how rapidly your alarm responds. Very hard 3D will drop the battery voltage more than a gentle hover. I have a cheap (under £3) battery monitor that monitors each cell. My not so good batteries I alarm at 3.6V and my better batteries at 3.7V. That may sound backwards but it does make sense. Off load both batteries are back at 3.8V. As Audi says it depends on your setup. Try 3.8V and then measure the current you put back. Different batteries will give different results.

[Davy Crockett]

I'm the same as Audi and cjcj, 3.7v on my quanum monitor and alarm sounds

Off load cells are around 3.8v and 25% left