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External battery solution

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I'm looking for a portable external power solution so I can shoot extended periods on my A7Sii.

 

 

I've searched dummy battery power supplies - anyone know the reliability of these...?

 

Andoer NP-FW50 Fully Decocded DC Coupler Dummy Battery Adapter

 

 

Using a power supply like this that has DC output and can be strapped to a tripod:

 

Ultra Edition ® 8000mAh Black coloured portable power bank

 

Would this be a suitable solution?

 

 

 

thanks

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I have dummy batteries of varies Chinese brands and they all work the same. The trick is if they come with a voltage converter (not sure what they call this) which is great if you don’t have a power supply that can pump out the necessary voltage. I bought a 5v to 9v coupler and basically I can attach on any of the USB power banks and work fine.

 

 

Sent from my iPhone using Tapatalk

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Thanks for the suggestion. Do you have a link to something suitable?

Something like this:

 

https://www.adafruit.com/product/2777

 

And the battery:

 

https://www.amazon.com/dp/B01LZYW7IP/ref=cm_sw_r_cp_api_Rq.Xzb1H46QAJ

 

That will be the cheaper option as then you can use any 5v USB power bank.

 

 

Sent from my iPhone using Tapatalk

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