Extend your camera’s battery life 9 times for only $40

Dec 14, 2016

Dunja Djudjic

Dunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

Dec 14, 2016

Dunja Djudjic

Dunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

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A while ago, we shared a practical solution for extending a Sony camera battery life with a power bank. If this is something you care about, the guys from The Film Look bring you an even cheaper way of doing it with big NPF Sony batteries. If you shoot film with a DSLR or a mirrorless camera, you should definitely have a look.

Robert and Richard use a Sony NP-FW50 battery as an example. It is a 1020mA battery that can give you about 40 minutes of shooting. When you have a whole day of filming ahead of you, this is not very convenient. One solution is to bring extra batteries, and a single one can cost from $15 to $50, depending on the camera and the battery type. Again, if you have a whole day of shooting ahead of you, this may not be the best solution, since it’s quite pricey.

But a more affordable and more practical solution is using a stronger battery as an external source of power for your camera. For this purpose, the guys use Sony NP-F750 battery, which they generally use to power their LEDs and camera monitors.

First, they bought a dummy battery for a Sony Alpha A7s, which costs about $40. It enables you to plug in external power source into your camera by using the dummy battery on one end, and a female power jack on the other.

Second, they used a battery plate adapter for the Sony NP-F750. They connected all the parts together, put the original battery in the camera and the NP-F750 in the battery plate – and that’s it.

What you need to do next is figure out how to mount this construction to the rig. Since Robert and Richard use Sony A7s cage, they adapted it for the purpose with a 50 mm rod, a cheese plate and some Velcro.

They have also tried this solution with larger NP-F970 batteries. It works too, but it happens that the camera stays idle from time to time. So, if you choose to try it yourself, make sure to use smaller F750 batteries. This solution should enable you about 6 hours of filming, which is more than great compared to 40 minutes with an original battery alone. So, it will give you not only a lot more filming time, but also the time to concentrate on the filming itself and not think about the batteries and how long it will last.

YouTube video

Have you used this hack before? What’s your favorite battery saving solution? Share your thoughts and experience in the comments.

[Upgrade Your Camera Battery | The Film Look via No Film School]

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Dunja Djudjic

Dunja Djudjic

Dunja Djudjic is a multi-talented artist based in Novi Sad, Serbia. With 15 years of experience as a photographer, she specializes in capturing the beauty of nature, travel, and fine art. In addition to her photography, Dunja also expresses her creativity through writing, embroidery, and jewelry making.

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7 responses to “Extend your camera’s battery life 9 times for only $40”

  1. Vanitas Foto Avatar
    Vanitas Foto

    I wish Sony (and most mirrorless manufacturers) understand that those dinky 1000 something batteries are bothersome…

  2. JOhn C Avatar
    JOhn C

    I’m confused. So it’s $40 for the dummy battery PLUS you need to buy another external battery? So, are you effectively buying 2 batteries (looks like the other battery is at least $69 on Amazon) and you have to get the adapter plate? So, isn’t it over $100, not $40 like the title says?

    1. Dunja Avatar
      Dunja

      Good point!
      But, I went with an assumption that one already has the lager battery, as the guys from the Film Look do. They didn’t buy it specifically for this purpose.
      The dummy battery can be found for $18, although their was more expensive. And I found adapter plates from $16 up. Still, even if you buy these parts for more money, I suppose it’s still more affordable than buying tons of batteries. :)

  3. WillMondy Avatar
    WillMondy

    Tiny cameras (and phones for that matter) have awful ergonomics and tiny batteries.
    I won’t be going mirrorless due to the battery issues and the EVF. One battery giving me 800 shots from my 5Dmk2 is enough for me at the moment, I might go for a battery grip when I get a new camera + lens combo.

  4. Chung Dha Lam Avatar
    Chung Dha Lam

    Here is a nicer setup placing the battery under the camera https://www.youtube.com/watch?v=2jK8IpImLx4

  5. cbenci Avatar
    cbenci

    This is one of the biggest issues with Mirrorless. Battery life is really a problem.

    My 5dm3 with battery grip gives me hours and hours of shooting.

  6. joe_average Avatar
    joe_average

    no way! i’d stick to the usb battery option in the previous article.
    npf750 battery –> $70 / (3700 mAh * 7.2 V / 1000) = $2.63 / Wh
    anker usb battery –> $45 / (20000 mAh * 5 V / 1000) = $0.45 / Wh