USB and wireless charging

12V Power and USB – What to Consider When Choosing

First, the output standard is crucial: simple USB-A ports charge slowly, while newer sockets with Power Delivery or Quick Charge deliver significantly more power – important if you want to quickly charge a navigation tablet that is running simultaneously and keeping the screen bright. Also, check how many amps the charger can deliver across all ports simultaneously before connecting multiple devices in parallel.

Don't Underestimate Protection Class and Housing

Onboard, the protection class of the housing matters more than in a car or at home. Splash-proof versions with rubberized covers or potted electronics survive daily life in the cockpit much better than models without such designation. Wireless charging pads work well in the salon, but in the cockpit, they are only reliable if the pad is securely fastened – otherwise, the phone will slide off in rough seas before charging begins.

Installation and Fusing

Permanently installed USB sockets are connected directly to the 12V power supply and should be protected by their own fuse. Pay attention to the correct sizing of the power cable – a cable that is too thin will get warm if multiple ports are fully utilized. Sockets with moisture protection can also be installed in teak or GRP surfaces if the cutout is properly sealed.

For maintenance, it's sufficient to regularly clean contacts and covers with a damp cloth and check the rubber covers for cracks. Corroded contacts usually occur where moisture remains trapped for extended periods – a quick drying after sailing is often enough to significantly extend their lifespan.