John Walton: Quick: which of these USB sockets will charge your phone, how fast — and which of them is the cable that came with your current phone? I've been writing about the power and evolving USB standards on airplanes for nigh on two decades now, and it's more complicated than ever for passengers.

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John Walton thatjohn.bsky.social
Quick: which of these USB sockets will charge your phone, how fast — and which of them is the cable that came with your current phone? I've been writing about the power and evolving USB standards on airplanes for nigh on two decades now, and it's more complicated than ever for passengers.
- The Up Front theupfront.media · 5h
  Our latest Business Readout analysis: From the USB-IF to USB-PD to Type-C, with milliampere-hours, volts and watts, passengers are understandably confused about charging onboard — so it’s up to airlines, cabin designers and the supply chain to bring clarity. theupfront.media/business-rea...
  Business Readout: After power bank bans, aviation needs onboard power supply clarity for normal passengers
  
  From the USB-IF to USB-PD to Type-C, with milliampere-hours, volts and watts, passengers are understandably confused — so it’s up to airlines, cabin designers and the supply chain to bring clarity
  
  theupfront.media
Feb 6, 2026 11:36
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