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I am trying to do live video streaming from the rasberry pi, meaning the camera is recording a video and then transmitting the live video over wifi.

What is the smallest battery I can use to power this setup for a minimum of 3 hours?

Can I use multiple CR2032 cells or will that overpower the 6V limit?

Using Raspberry Pi Zero W with Camera Module V2-8 Megapixel,1080p.

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  • 2032 is too weak, use the strong guy18650
    – tlfong01
    Jul 27, 2019 at 1:03
  • Which version of the pi? Which camera?
    – BobT
    Jul 27, 2019 at 1:31
  • @BobT Raspberry Pi Zero W with Camera Module V2-8 Megapixel,1080p
    – awezmm
    Jul 27, 2019 at 1:41
  • @tlfong01 18650 is too big. Can I use multiple 2032 cells and connect them in a circuit? I want to use a battery cells that are more on thinner size
    – awezmm
    Jul 27, 2019 at 1:43
  • @awezmm, Well, of course there are small and thin lipo power banks. But usually smaller and lighter guys store less energy and cannot last long. Button cell capacity is usually of the order 100mAH or at most 1000mAH. Lipos can be 10 to 100 times more. So it is always a trade off . aliexpress.com/popular/lipo-power-bank.html
    – tlfong01
    Jul 27, 2019 at 4:38

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The raspberry Pi Zero W consumes 230 mA with camera connected and capturing video at 1080p It further consumes 170 mA when wifi is turned on 230+170=400 mA Add 100 mA more to that just to avoid any mess. So the total power consumption by Raspberry Pi zero w is 500 mA And you want to run it for three hours that is mAh=500×3 =1500 So, you need to get a 1500 mAh power bank But again it's better to get one with a 2000 mAh

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