You’ll spend at least a few hundred dollars to have a panel USB charging port installed, and for many dropping big money on a panel upgrade it’s probably worth it. But for the rest of us, especially renters, plug-in chargers are the only options for a constant source of ship’s power for keeping portable gadgets topped off. I’ve been using two of the latest aviation-purposed chargers: the MyGoFlight Dual Digital model, and the Sporty’s Flight Gear Dual USB Quick Charger.
Yes, I know many pilots have good luck with cheap plug-in chargers sourced at the local auto parts or hardware store, but I also know that many of these devices inject unwanted noise in the audio system that caused an expensive troubleshooting tail chase.