My charger is outside and not sure about the velcros all weather proofing. Yes it works a charm make sure you are close to the port as range is limited.
You want 3M Dual Lock for outdoors if possible - https://www.amazon.co.uk/Dual-Lock-SJ3550-Tape-25-4mm - is fully plastic and has a VHB type tape on the back of it too. It sort of clicks together rather than peels like velcro does and won't hold onto any water. I used it to mount two small spotlights to my motorbike fairings and never let go in 20,000 miles in all weathers.