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Strobe batteries

Discussion in 'Strobes and Lighting' started by TwoBitTxn, Dec 4, 2019.

  1. TwoBitTxn

    TwoBitTxn Instructor, Scuba

    # of Dives: 500 - 999
    Location: North Texas
    3,999
    67
    48
    Looking for suggestions on what rechargables to use in a pair of Sea and Sea strobes.

    Thanks
     
  2. tarponchik

    tarponchik Loggerhead Turtle

    # of Dives: 500 - 999
    Location: USA
    1,668
    358
    83
    What do you currently use? AA's? Replace with Panasonic Eneloops.
     
  3. Cali_diver

    Cali_diver ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: California
    966
    508
    93
    Regular Eneloop rechargeable batteries should be fine!
     
  4. TwoBitTxn

    TwoBitTxn Instructor, Scuba

    # of Dives: 500 - 999
    Location: North Texas
    3,999
    67
    48
    I started with lithiums until I saw Sea and Sea says don't use lithiums.

    How many dives can you typically get off a charge. I know how much you shoot plays a role in that too.
     
  5. aviator8

    aviator8 Photographer

    # of Dives: 25 - 49
    Location: Georgia
    658
    347
    63
  6. davehicks

    davehicks Barracuda

    # of Dives: 1,000 - 2,499
    Location: Seattle
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    43
    Eneloops are the gold standard for AA power strobes. Lithium's are great for lights, computers, etc but are not at all suited for Strobes. The recycle time and # of flashes is way worse on Lithium than Eneloops. Besides, it is much more cost effective and efficient to get 2 full sets (4 or 8) Eneloops and a good 8-cell recharger.
     
  7. tarponchik

    tarponchik Loggerhead Turtle

    # of Dives: 500 - 999
    Location: USA
    1,668
    358
    83
    For me, good enough for 2 dives. I never tried more since I replace camera battery after 2 dives anyway.
     
  8. Germie

    Germie Cave Instructor

    # of Dives: 1,000 - 2,499
    Location: Netherlands
    535
    398
    63
    I use the LADDA ones from Ikea. Rechargable and as good as Eneloops. Also Lidl sells sometimes really good NiMh batteries.
     
  9. Interceptor121

    Interceptor121 PADI Pro

    4,202
    585
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    Eneloop PRO. The strobes have high discharge current and use of standard Eneloop will impact battery life and charging time
     
  10. fmerkel

    fmerkel Loggerhead Turtle

    # of Dives: 1,000 - 2,499
    Location: Salish Sea (Seattle)
    1,634
    607
    113
    Not quite the whole story. The PRO do have more capacity (when new), so will sustain discharge LONGER, but don't actually support much effective higher discharge rate. In use most people will not be able to tell any difference unless you are routinely pushing your strobes to exhaustion.
    In the long haul the PRO will succumb to higher internal resistance sooner and degrade faster than the STAMDARD Eneloops. Not a problem if you replace them every 2-3 years. If you use them hard for 3+ years I'd go for the standard Eneloops.

    This is quoted directly from a discussion with Eneloop engineers:

    4. What is the differences from a technical and design/construction of regular Eneloops and Eneloop Pros that allow the regular Eneloops to retain charge for longer and have more recharge cycles and the Pros to have a higher capacity?
    More volume is more capacity. The Pro batteries have a thinner canisters so there is more active material and electrolyte . The reason why there is a difference in the cycle life is the difference between the amount of the positive and negative electrode. The bigger the difference the more cycles it can have.

    8. Why do eneloop Pro decrease in quality so quickly? In real life only 100 cycles or 2-3 years of use. Is it built up internal resistance?
    Yes, they build up internal resistance. And therefore can’t provide enough energy. The size of the positive electrode and negative electrode has to do with this. Positive has to do with Capacity, and the Negative has to do with Cycle life. The closer these numbers match the shorter the lifespan.
    Added info by Panasonic employee Brussels in email: The ratio Between Positive and negative electrode will define the capacity. This means for example there is in an lite an equal amount of negative and positive electrode, however in a pro there is more Positive material ( which will cause a higher capacity) but a far higher amount of negative electrode. So the ratio difference of -and+ will be higher at a at pro then with Eneloop lite. You need more negative material in order to get the high capacity out of the Eneloop pro. But in contradiction to that higher - vs + ratio, the more stress there will come on the battery during charging and the higher the capacity loss will be after several cycles.
     
    aviator8 and bmorescuba like this.

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