CR2032 lithium ion 3 volt batteries are used for many dive computers. It is always a good idea to have spare batteries handy while scuba diving, so add a few to your save a dive kit. Here's a partial list of dive computers that use CR2032 batteries. "2x" indicates you'll need 2 CR2032 batteries for the indicated dive computer. Always check your owner's manual and, if it conflicts with the advice below, follow the owner's manual.

CR2032 3V Lithium Battery Compatibility:

• Aeris ATMOS Pro 2x
• Cressi Archimede 2
• Dacor Omni
• Dive Rite Nitek Duo
• Genesis Resource 2x
• Genesis Source
• IST PG 3000
• Oceanic Data Plus 2x
• Oceanic Datamax sport
• Oceanic Matrix
• Oceanic Matrix Master
• Sherwood The Source 2x
• Suunto Mosquito
• Oceanic Prodigy
• Tusa IQ-850 (DC-Sapience II)
• Tusa IQ-800 (DC-Sapience)
• Tusa IQ-700 (DC-Hunter)
• Tusa IQ-600 (Planina)
• US Divers Matrix 2x
• Zeagle N2ition