Your Canon R8 dies halfway through a livestream, the chat panics, and now you’re googling “dummy battery vs USB-C PD –– will it blow up my camera?” Most advice collides: some swear a 30 W phone brick is fine, others insist on 100 W “just in case.”

The truth is buried in volts, amps, and a USB-C handshake most videos skip. This guide straightens it out. We’ll demystify Power Delivery basics, debunk the “over-voltage fry” myth, and give you a one-click calculator that converts your camera’s battery specs or watt draw into the exact PD profile you need – plus a shortlist of certified GaN chargers up to 240 W. Powering mirrorless cams safely has never been clearer.