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Thread: Battery life

  1. #1
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    Battery life

    How often do you change your batteries?

    I am showing 3 squares with 5.5V

    On the basis the manual says;
    6v new battery, shows 3 squares
    5.3v worn battery shows 2 squares
    5.2v Super lowbattery shows 1 square
    4.8v is empty battery

    Im guessing im a few hours away from 2 squares and will change, does anyone have any other magical way of pre-empting a change?

    Mk3 solenoid, vision handset (backlight always on), CR123 Batteries

  2. #2
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    Quote Originally Posted by Dylona View Post
    How often do you change your batteries?

    I am showing 3 squares with 5.5V

    On the basis the manual says;
    6v new battery, shows 3 squares
    5.3v worn battery shows 2 squares
    5.2v Super lowbattery shows 1 square
    4.8v is empty battery

    Im guessing im a few hours away from 2 squares and will change, does anyone have any other magical way of pre-empting a change?

    Mk3 solenoid, vision handset (backlight always on), CR123 Batteries
    FWIW, I change them based on how long they've been used and what the next dives are about. If they're a one-off and shallow, I might not worry about it as, worst-case, one will run low and I'll have to swap onto the backup batteries. It'll be mildly annoying but nothing more. If that next dive was part of a series and deeper, I'd change them and use the new ones to get a feel for how they are behaving. The battery indicator is IME the diving equivalent of a politician - all promise but utterly untrustworthy - especially in cold water. As far as I'm concerned if it is anything less than 3 squares, it's being swapped out and if I'm in doubt and need the unit to be 100%, it'll be swapped out. It's cheap batteries ATEOTD and there's more exciting and expensive things to worry about (like O2 cells!).
    The views expressed are my own, worth what you've paid for them, are not on behalf of anyone else and not those of any company I work for etc.

  3. #3
    Gone diving back later Vanny's Avatar
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    When I had mono handset and cr123 I’d change out before 5.4v on start up - otherwise I’d get the low batt alarm.

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    So 5.5 last night, but 5.4 this morning

    dropped to 2 squares mid dive today (70min dive time)

    Then dropped to 1 square mid dive on second dive (50 min dive time)

    Need to be swapping the batteries at 5.5 I think!


 

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