Does not use USB port for charging. It uses a 12V outlet (cigarette lighter). Older boats like mine have it on the panel, newer boats I don't know. It also doesn't show up when it's fully charged. You just need to let it charge for "13 hours". (What happens if you leave it charging for 24 hours?) It seems pretty quirky and dated in that regard.
🎣 Garmin Striker Plus 4 Review: Dual-Beam Transducer Features (010-01870-00)
10 Review
Portable WiFi Fish Finder with GPS for Kayaks, Boats, and Ice Fishing - Deeper PRO+ Smart Sonar for Deeper Insights
153 Review
8 Inch Blue Injection Molded Cone Car Vehicle Subwoofer Audio Speaker - Chrome-Plated Steel Basket, Dual Voice Coil, 4 Ohm Impedance, 600 Watt Power - Pyle PLBW84 for Improved Vehicle Stereo Sound System
11 Review
Garmin GPSMAP Navigator Chartplotter 010 00864 01
11 Review
✈️ Enhance Your Aviation Experience with the David Clark H10-13.4 Aviation Headset
9 Review
🛩️ Stratux ADS-B Dual Band Receiver: Advanced Aviation Weather and Traffic System with WAAS GPS, AHRS, Battery Pack, Suction Mount, Antennas, SDR
9 Review
🎧 FARO Aviation Headset Converter: Low to High Impedance Adapter for General Aviation (GA) and Military Headsets
9 Review
🔍 MANN-FILTER W 811/80: The Optimal Oil Filter for Enhanced Engine Performance
11 Review