21. Power management

GPS consumes way more power than Timer and Blinker

Fully charged 240 mAh battery is good for about:
- 80 three-minute flights with only timer
- 20 flights with blinker enabled
- 3-6 flights with blinker enabled and GPS
Battery has a dedicated protection circuit. It cuts off the battery when the voltage goes below 3 volts. The Battery is safe for more than 1 year in protected mode. Timer does not operate if the battery is in protected mode. However as soon as you connect the cable, charging begins
Timer shuts off automatically after some time of inactivity
Waiting for launch mode - Timer shuts down in 30 minutes
Timer shuts down if you do not start entering new time or Servo position value for 10 seconds
Timer will stay in Ringing-Blinking stand-by mode till the battery is discharged and goes to protected mode. Fully charged battery will last for few weeks. However, with GPS it is only few hours.
In all other cases Timer shuts down after 1 minute of inactivity
Charge the battery if you did not use a Timer for a few weeks. Timer draws a small current (about 0.00015A) even if it is shut off. This discharges the battery to 3 volts in 8-10 weeks and the battery protection circuit will go to protected mode. It is safe for the battery
Timer uses 25 mA when the servo is not moving and no sound
Timer uses 40 mA when the servo is moving and no sound
Timer uses 90 mA when Buzzer sounds and the servo is not moving
Timer uses average 0.25 mA in Ringing-Blinking stand-by mode