Sony a9 unusual battery power drain

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Joe Tam Senior Member • Posts: 1,306
Sony a9 unusual battery power drain

Hi,

I am trying to figure out what is causing a lot of battery drain on my a9 with new Sony batteries.  Today I went from full to 21% in about 200 shots (RAW+10 megapixel JPG) in about 2 hours.

I have had the 2 a9 cameras for 2.5 years and have never been through these many batteries.  Other day I went through 5 and did not shoot too much.  I have purchased new Sony batteries as well as some other third party batteries(RAVPower and Wasibi) in the last month and all seem to go through quick battery drain.

I have recently started using FTP option with Sony A9 connected via ethernet to Netgear Nighthawk MR1100.  I also send images from a9 using Image Transfer and undestand that has a toll on the batteries.  However, even if I am not using FTP like today or sending images via wireless the battery still drains very fast.

Should I have Airplane Mode on at all times to prevent this battery drain?

Does FTP option ON cause huge battery drain even if I am not sending any images via FTP?

 Joe Tam's gear list:Joe Tam's gear list
Sony a9 Sony a7R IV Nikon AF-S Nikkor 24-70mm f/2.8G ED Nikon AF-S Nikkor 400mm f/2.8G ED VR II Nikon AF-S Nikkor 70-200mm f/2.8G ED VR II +11 more
Sony a9
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