Capable of operating from 7.5 Volts or less and up to 15 Volts with a standby current drain of just a few milliamps, gives extended battery life. The actual battery current is dependent on Audio volume setting and climb rate.

For extra security and redundancy the PK312 is available which mounts a 9V battery and has automatic change over if main power fails. Great to know you can have audio to get home or to allow a flight to continue in the event of power loss. To extend battery life further the V1000 vario measures the applied voltage and adjusts the maximum volume setting minimising current drain. A low battery condition is indicated clearly by a "LO BATT" flag displayed on the LCD.

Automatic power down.
The V1000 samples the altitude and total climb over a two hour period and decides if it has been flying and powers down the vario if inactive.
This smart power down is included to prevent discharge of the PK312 Battery backup after main power shut down on the ground.
12 hours or more operation is available.