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HELP. YS-D2 discharging batteried when turned off

Discussion in 'Sea&Sea Society' started by JohnN, Aug 28, 2018.

  1. JohnN

    JohnN Solo Diver

    # of Dives: 200 - 499
    Location: Oar--eee---gun
    2,122
    855
    113
    Is this a common problem? I'm using Enerloop batteries and the are almost flat after 5 hours ( I didn't turn flash on)

    A black YS-D2 if that makes a difference
     
  2. Tom_Ivan

    Tom_Ivan Nassau Grouper

    # of Dives: 25 - 49
    Location: Christchurch New Zealand
    94
    30
    18
    Don’t know squat about the YS-d2 but know a bit about electronics.

    I’d start by eliminating the battery itself as the cause of the issue. They can develop internal faults and/or surface discharge. Start by disconnecting the freshly charged battery and just leave it on the bench. Check the voltage over time to see if it drops. If it does use a multimeter between one terminal and the body of the battery. Contamination can cause discharge across the surface, especially if the terminals a close together, so if you get a reading then give the battery a clean.
    If it remains fully charged we’ll go to plan B.
     
  3. JohnN

    JohnN Solo Diver

    # of Dives: 200 - 499
    Location: Oar--eee---gun
    2,122
    855
    113
    Plan B then. The strobe isolates the batteries from each other with plastic dividers
     
  4. Tom_Ivan

    Tom_Ivan Nassau Grouper

    # of Dives: 25 - 49
    Location: Christchurch New Zealand
    94
    30
    18
    Next step is to check voltage drop across the circuits. Isolate where the current is getting through that it shouldn't. But we need a circuit diagram.

    I've been searching for one online but have had no luck.
     

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