[Round three pin sockets and charging mobile phone]

Thank you again everyone.  It has made me realise the lack of depth to my knowledge of the boats electrics, something I am actively addressing and your contributions are helping me.

[Round three pin sockets and charging mobile phone]

Thank you very much everyone.  You have been really helpful and I appreciate it.  

[Round three pin sockets and charging mobile phone]

Our boat has only three pin round sockets.  Ordinarily we never take a mobile phone , tablet etc preferring to leave them all behind.  For our next trip we need to be in contact with the outside world and therefore need to take a mobile phone and ensure it is charged..  Has anyone any idea how we can charge it please?  The boat is basic with no frills.