How many batts for a 5 hour shoot?

[rawfa]

Guys, I have to shoot 3 days of interviews with a Sony A7II and an A6000. Each day will last around 5 hours. I'm wondering how many batteries do I need for each camera.

 

[Ben Scott]

I'd say 6 would be the safe minimum on the A7. No idea for the A6000.

 

[alaskacameradude]

I think a similar number for the A6000. I seem to recall a little less than an hour
of video recording per battery. It also helps to have an external battery charger
so you can throw spent batteries on it during the day. It's not a replacement
for having adequate number of batteries for the day, more of a backup just
in case......

 

[Ben Scott]

Last time I shot with an A7s it was like watching a countdown timer seeing the battery die.

Just bought an A7s II to replace it and I might just get a dummy battery and V Mount solution.

 

[al4video]

I shot all day off and on yesterday with this combination using a Sony NP 950 battery Both pieces together cost $42.40 and can also run the camera on AC as well.
http://www.amazon.com/gp/product/B006733DB2?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00

 

[Erik Naso]

If you are mainly on a tripod or rig with the A7 get a USB battery like this one and you can get 4 hours of record time with one battery in the camera and the USB battery connected. Both the in camera battery and the USB battery will deplete at the same rate so you should have both batteries fully charged for best results.

 

[Ben Scott]

Nice idea and still lightweight. Will test this.

 

[firehawk]

Can the a6000 run off a USB battery?

 

[Erik Naso]

Can the a6000 run off a USB battery?

No it wont work with the a6000. A7s, a7sii and a7rii. Not sure if the a7r will work or not with USB battery.

 

[adaptation]

At a rate of 1hour/battery which was the standard for the a7s - 6 batteries would be the way to go.