DIY External Camera Battery

Filmaker Scott Eggleston has a love for low budget accessories. Eggleston is also an avid DIYer and on the video above he demonstrate a simple solution that will enable you to use your camera for a much longer time using a cheap external battery, below you will be able to find the second part with a much more intense DIY solution for an external battery with an on/off switch.

Especially when shooting video, the battery of your DSLR or mirrorless camera can drain very quickly. Sometime you do not wish to switch batteries and prefer to use a more lasting option (for example  if your camera is buried inside of a rig, an external battery is much easier to swap out). Connecting your camera to the outlet or having an external battery is a better option than your regular battery.

Eggleston talks about these two options on the video above. He used a Power Adapter Coupler for Sony NEX-7 NEX-5N NEX-5C (but you can find similar devices for many other cameras).

The more interesting (and complicated) DIY part comes on part two (below). Here Eggleston demonstrates how he added an on/off switch to the battery unit so it will not drain (we still think that a better option is just to pull out the battery when you don’t need it – but if you are a DIYer in heart – this one is for you.


Important: Remember – connecting a battery which is not the original one to your camera can damage your camera and potentially harm not just your gear but you as well – don’t do this if you don’t know what you are doing!

Here are the parts that you will need for the DIY hack:


  • small Philips head screwdriver
  • key card/credit card/debit card/gift card
  • fingernails
  • wire cutters
  • wire strippers
  • Soldering Iron
  • Rosin Core Solder
  • scrap of wire
  • electrical tape
  • flat head screwdriver
  • #8 combination wrench

Be sure to watch Eggleston “How to Make a DIY PVC Light Stand for Under $5“. You can also check out many more interesting DIY photography projects here on LensVid.

Iddo Genuth
Iddo Genuth is the founder and chief editor of He has been a technology reporter working for international publications since the late 1990's and covering photography since 2009. Iddo is also a co-founder of a production company specializing in commercial food and product visual content.

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