Originally Posted by
ajGoes
Why not use a USB condom like
this? It doesn't connect the data pins so there's no path for malware to enter your device.
While I see this solves the potential malware problem, AFAIK the USB ports on planes are 0.5 amps. At that low current flow, very few devices other than a smartphone will benefit from the miniscule 2.5 watt output. Even a smartphone (in airplane mode) may draw more current than being replaced, depending on what you are doing with it