battery - Is there really no way to power a DSLR by USB?

I made some scripts on my Raspberry Pi to automate a daily shot at a specific hour.

My DSLR is plugged in through USB. I thought this would keep its battery charged, but no.

Is there really no way automate a DSLR to shoot every 24 hours without having to pick it up, charge/replace its battery, and put in back on the same spot?

Answer

Is there really no way automate a DSLR to shoot every 24 hours without having to pick it up, charge/replace its battery, and put in back on the same spot ?

Canon and Nikon cameras can be connected to AC power by means of an adapter that fits in the battery slot. For example, Canon DSLRs that take an LB-E6 battery (like the 5D II, 6D, and 7D) can use an ACK-E6 adapter:

And Nikons that take a EN-EL14 battery (like D3200, D5200, etc.) can use this EP-5A AC Adapter:

I've seen similar arrangements for other brands as well. The best plan is to check the list of accessories available for your camera -- there are sure to be solutions for powering your camera both from AC power and also from a 12V vehicle battery.