Oceanic OC1 Operating Manual - page 25

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POWER SUPPLY

•  OC1 (Watch) Battery >> (1) 3 vdc, CR2450, Lithium 

battery

•  Shelf life >> up to 7 years (when shipped from factory in 

Deep Sleep mode)

•  OC1 use life >> 1 year or 300 dive hours if (2) 1 hour 

dives per dive day

•  TMT (Transmitter) Battery >> (1) 3 vdc, CR2, .75 Ahr, 

Lithium battery

•  TMT use life >> 300 dive hours if (2) 1 hour dives per dive 

day

•  Replacement >> user replaceable (annual recommended)

Battery icon (OC1 only): 

•  Warning >> icon on solid < 2.75 volts, battery change 

recommended

•  Alarm >> icon on flashing < 2.50 volts, change the battery

BATTERY STATUS  

To access, while viewing NORM (or GAUG) SURF Main >>

•  M (< 2 sec) to access Menu

•  A (< 2 sec), repeat until ( > ) is next to BATT/TMT

•  S (< 2 sec) activates Receiver, then OC1 Status screen 

appears for 3 sec (Fig. 1A), then each TMT Status screen 

for 3 sec (Fig. 1B).  

Fig.1A-OC1BATTERY

STATUS

Fig.1B-TMTBATTERY

STATUS