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Shearwater DiveCAN
®
Petrel
Battery Types
After changing the battery, a screen will prompt for the battery type to be entered�
The Petrel attempts to guess what type of battery is being used� If the battery type is incorrect,
it should be manually edited� Having the battery type set correctly is important so that the
Petrel can give low battery warnings at the proper voltage levels�
Supported battery types are:
1�5V Alkaline:
The common AA battery type that can be purchased at most supermarkets and
electronics stores around the world� Not rechargeable� Inexpensive and reliable, they provide
35 hours of operation�
1�5V Photo Lithium:
Fairly common, but more expensive than alkalines� They provide about
55 hours of operation� Not rechargeable� Good for use in very cold water� Recommended�
1�2V NiMH:
Common rechargeable batteries used in digital cameras and photo flashes. Can
have high self discharge� Provide about 30 hours of operation per charge� Can die quickly, so
care should be taken to ensure sufficient charge prior to diving.
3�6V Saft:
The Saft LS14500 lithium batteries provide very high energy density� However, their
high cost makes other battery types a better choice for most users� Provide about 100 hours of
operation. Can die quickly, so care should be taken to ensure sufficient charge prior to diving.
3�7V Li-Ion:
Rechargeable14500 Li-Ion batteries provide about 35 hours of operation per
charge� Can be ordered from the internet� Have more gradual voltage drop as discharged, so
easier to determine remaining capacity than NiMH rechargeables� Good in cold water�
NOTE: Battery operating lifetimes are given with screen on medium brightness and at room
temperature� Higher brightness and lower temperature can reduce life� Lower brightness can
increase life�
Common brands include: Energizer Advanced and Ultimate Lithium AA
The 1�5V Photo Lithium batteries have many characteristics that make them an excellent
choice:
• Widely available�
• Long operating life (55 hours on medium brightness)�
• Excellent cold temperature performance�
• Able to provide higher output current than Saft lithium�
Recommended Battery Type: 1�5V AA Photo Lithium