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Using hi-power rechargeable AA batteries for flashguns

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  • Using hi-power rechargeable AA batteries for flashguns

    During my scuba diving days I used 2 powerful strobes for underwater photography and each was powered by four 2900mAh rechargeable AA batteries. I have been retired from diving for over 2 years but still have those batteries. I wondered about using them with my Olympus FL600-R or Nissin i40 for conventional flash photography but am not sure if they are too 'strong' for a regular flashgun.

    Can someone advice please?

  • #2
    Re: Using hi-power rechargeable AA batteries for flashguns

    The 2900mAh rating only references the capacity of the batteries, not the power output. If they are normal NiMH batteries then the chemistry will be the main factor and that means 1.2V nominal with a normal range power demand. I have often used 2800mAh rated batteries and 2900 only means they will, in theory, last a bit longer, though a lot of exaggeration goes on in the battery business

    Ian
    Founder and editor of:
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    Four Thirds User (http://fourthirds-user.com)
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    • #3
      Re: Using hi-power rechargeable AA batteries for flashguns

      Purchased two packs of four AA 2900mah from 7dayshop, had them few years now.
      In my FL-36, FL-50R and FL-600R, used for weddings, model shoots and general use.
      Not been able to fault them, they've always provided fast recycling times and decent number of shots per charge.

      Mark

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      • #4
        Re: Using hi-power rechargeable AA batteries for flashguns

        I’ve been happy with Eneloop Pro’s but the capacity isn’t as great, but they are supplied charged and seem better at holding their charge. I’ve recently found some only 7DayShop rechargeables but they wouldn’t take a charge so the went in the recycle bin I’m afraid. They’d not been used / charged for literally years so I guess it was to be expected. Batteries are a bit like memory cards for me, I tend to buy them on impulse whether I need them or not (generally it’s not but you can never have too many SD cards or AA’s!!)

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        • #5
          Re: Using hi-power rechargeable AA batteries for flashguns

          I've found non-rechargeable Lithium Cells the best for flashes. They've got a higher terminal voltage and lower internal resistance than rechargeable Nimh cells so they cycle faster. Also I find the much lower weight a big advantage.

          Jim

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          • #6
            Re: Using hi-power rechargeable AA batteries for flashguns

            I use enloops and I am very happy with them in my Nissin i40
            OMD E-M1 OMD E-M5II MMF3 12-40 pro 12-50 EZ 14-42 EZ 9-18 f4.0 -5.6 40 -150f4-f5.6 R 60mm f2.8 macro Sigma 105 f2.8 macro Holga 60mm plastic Holga pinhole lens lens and a XZ-1 Olympus - 35 SP Trip 35 Pen EEs OM2sp

            I nice view does not mean a good photograph. My FLickr

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            • #7
              Re: Using hi-power rechargeable AA batteries for flashguns

              Another vote for Eneloops, I use them in the FL50, bought the batteries in 2010 and still going strong and holding the charge.
              This space for rent

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              • #8
                Re: Using hi-power rechargeable AA batteries for flashguns

                Ooh, maybe a poll on users of Eneloops!

                Now, if I could just figure out how to set up said poll!

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                • #9
                  Re: Using hi-power rechargeable AA batteries for flashguns

                  Eneloop, I believe, is a Sanyo trademark. However this newer NiMH chemistry, which has a lot lower power drain when not in use than conventional NiMH cells, is now widely available from other manufacturers. The easiest way to tell is if the battery pack says charged and ready to use.

                  Ian
                  Founder and editor of:
                  Olympus UK E-System User Group (http://e-group.uk.net)
                  Four Thirds User (http://fourthirds-user.com)
                  Digital Photography Now (http://dpnow.com)
                  Olympus camera, lens, and accessory hire (http://e-group.uk.net/hire)

                  Twitter: www.twitter.com/ian_burley
                  Flickr: www.flickr.com/photos/dpnow/
                  Pinterest: www.pinterest.com/ianburley/
                  NEW: My personal BLOG ianburley.com
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                  • #10
                    Re: Using hi-power rechargeable AA batteries for flashguns

                    Just brought some from IKEA. Several good reviews, but have yet to test them.
                    Graham

                    We often repeat the mistakes we most enjoy...

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                    • #11
                      Re: Using hi-power rechargeable AA batteries for flashguns

                      Originally posted by Graham_of_Rainham View Post
                      Just brought some from IKEA. Several good reviews, but have yet to test them.
                      How easy were they to assemble?

                      Did you enjoy the meatballs too?

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                      • #12
                        Re: Using hi-power rechargeable AA batteries for flashguns

                        Originally posted by TimP View Post
                        How easy were they to assemble?

                        Did you enjoy the meatballs too?
                        I went early, they were only serving breakfast...
                        Graham

                        We often repeat the mistakes we most enjoy...

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                        • #13
                          Re: Using hi-power rechargeable AA batteries for flashguns

                          Originally posted by Jim Ford View Post
                          I've found non-rechargeable Lithium Cells the best for flashes. They've got a higher terminal voltage and lower internal resistance than rechargeable Nimh cells so they cycle faster. Also I find the much lower weight a big advantage.
                          Another advantage of Lithium Cells is that they have a shelf life of many years.

                          I've also checked the weight. Lithium 15g each; Nimh 28g each. So the Lithium are almost half the weight of Nimh cells. This is significant if you use the flash on the camera hot shoe.

                          Jim

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                          • #14
                            Re: Using hi-power rechargeable AA batteries for flashguns

                            I have been using Enloop or 7DayShop pre-charged equivalents since I bought my Olympus R-series flash guns several years ago The AAs are 2500mAh.

                            Harold
                            The body is willing but the mind is weak.

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                            • #15
                              Re: Using hi-power rechargeable AA batteries for flashguns

                              Originally posted by Graham_of_Rainham View Post
                              Just brought some from IKEA. Several good reviews, but have yet to test them.
                              Can't remember where I read it - maybe this and releated (https://www.slrlounge.com/panasonic-...they-the-same/) - but they tested Ikea LADDA batteries (their low discharge product) and they performed better than Eneloop.
                              Steve

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