Portable battery pack

[gemniii]

The V2 consumes about 1.7 watts/hour without IR,

Wyzecam V2 real-world power usage test

This is DAYTIME usage, which will be less than night mode. I will update this when I can do a night mode test.   Here’s the typical power usage. It goes up and down a bit depending on activity, but you can see from the graph that it varies so little as to barely be a blip. So let’s just go with 1.67 watts as a nominal number. That’s 40 watts a day. If we look at one of the jump start packs with USB out, like my Anker 15k pack, it has 180 watt-hours of capacity. So the camera could run fo…

but 2 watts/hr is the figure generally used, so portable battery packs are an excellent DIY solution.

I’ve several portable battery packs -
I’ve three Samsung 10AH @5 volts (50 watts) bought for $16 on sale
A Ravpower 16AH @5 volts $25 on sale
and a Harbor Freight LiFePo4 “jump pack” 12AH @12 volts (144 watts) $60 on sale
and then of course there are regular car batteries with also buying a 12 volt to 4 volt adapter for usb.
By far the least expensive PER WATT is the car battery. I need to replace my batteries in my Ford E350 diesel, a Delco that puts out 108AH (~1300 watts) is $93.

Now what do you call “portable”?
My Samsungs are about the same size and form factor as my phone, and easily slips in my shirt pocket, Ravpower barely fits in my shirt pocket, the Harbor Freight fits in my cargo pant pocket, the Delco for my van is about 12" x 7" x 9" and weighs about 50 lbs! (but it should run a V2 for about a month).
I’ve used the Samsungs when I needed a trailer back up camera or something to monitor a battery charger,