How long does it take to charge the Transponder?

When fully discharged the Transponder will require 24 hours to become fully charged. This will be enough for three days use. (When taken out of the charging cradle the transponder should flash a green light three times then a gap then three more flashes indicating it is fully charged.)
If you constantly charge the transponder for less than 24 hours or do not allow it to fully discharge the battery performance will be reduced.