You just set up your equipment for the first dive of your vacation in Saint Somewhere, as you press the activation button on your air integrated Uwatec dive computer it goes through the diagnostic screen and what do you see the No Air Pressure Reading. The worst thing that can happen on a tropical vacation has just happen No Reading from your Dive Computer. Don't leave on a vacation without spare batteries why ruin a great holiday because of a few dollars in batteries. Always pack some spares, don't forget your Dive Light needs some too!
The Battery is a 3.0 Volt CR-2 Lithium Cell. Battery is sold as a Single and can Save-a-Dive when you need it most. If you're planning a Dive Vacation this is a must for your Save-a-Dive Kit. Avoid Island prices with a Fresh Batteries!