England Youth international Edwards joined Charlton at the age of 13 and has been a mainstay for the club’s development squad in the last two seasons.
Strong in the tackle, Edwards has turned out for England under-16s and under-17s in the past, representing the Three Lions at the Algarve tournament.
The Romford-based left-back has won back-to-back Professional Development League 2 South titles with the Addicks, for whom he is now the under-23`s skipper.
Earlier this season he spent 67 days on loan with Eastbourne`s league rivals Bognor Regis Town, making three appearances.