3v battery life on IIIn ttl from Sea & Sea?

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Larry C

Larry C

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Scuba Instructor
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Anyone have experience with the Sea & Sea type III ttl units? How many 45 minute dives should I be looking at before I replace the little 3v battery? I carry a spare, but I don't want it dying in the middle of a dive. Currently, I think I have about 8 dives on the original battery.
 
I would have said at least 100 dives. The battery on my Heinrichs lasted several months and many 100s of dives. All it is doing is powering the circuit. Change it once a year at most would be my guess.
Bill
 
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