RB06/01/10 - 6V Lithium Battery (CRP2) for Inspiration / Evolution electronics with older battery box.
This is for ONE battery
Each oxygen controller has it's own battery and circuitry
Tests show that Fujitsu or Energizer CRP2 are the best brands for this application. These are readily available.
NOTE: Panasonic and Radio Shack batteries are NOT RECOMMENDED
The battery life varies from diver to diver due to the frequency of use of the backlight and the brightness setting. Assuming you follow the sensible procedure of discarding the battery in the B1 slot (nearest the solenoid) when the low battery level is reached, replacing it with the battery from the B2 slot and inserting a new battery into the B2 slot, you can expect to put one new battery into the B2 slot approximately every 17 hours.
The electronics do not automatically power down when not in use.
It is, therefore, very important to ensure that it is switched off after use to preserve battery life.