DO NOT USE VOLTAGE TO DETERMINE THE NO-FLY CUT-OFF. DON'T DO IT.

You MUST learn how many Mah per flight your plane uses. Of the 2300 (which is really about 2150), I use about 1800 before charging.

Here's what you do:

1. Charge batteries up completely.
2. Fly 2-3 flights
3. Charge up batteries again.
4. Divide Mah put back in the batteries by the number of flights (eg 900mah / 3 flights = 300mah per flight
5. Divide your cut-off mah (1800) by 300 (average mah per flight) = 6 flights safely

Re-do this measurement every couple of months, AND once you know your plane can safely do it, try and take the measurement at five or six flights.

Good luck Smitty!!