You just set up your equipment for the first dive of your vacation in Saint Somewhere, as you press the activation button on your dive computer it goes through the diagnostic screen and what do you see the "Low Batt" Icon appears The worst thing that can happen on a tropical vacation has just happen No 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 TL-2150 3.6 volt battery is a 1/2 AA size lithium cell used in many dive computers and air integrated computer transmitters.
This 3 6 Volt Battery is compatible with the following dive computers
Aeris CompuMask Hud Mask
Oceanic's DataMask HUD Mask
It's also compatible with the following "discontinued" dive computers
Aeris's 500 AI & 750GT
Oceanic's Datamax Pro Plus, Data Plus 2 & Datatrans Plus