My info says fuse 18--20amp. That fuse box is under the spare tire cover. Hopefully the fuse box cover has a legend that will tell you which fuse does what? It may not be called a cigar fuse, it may be called a power outlet fuse of some kind.
Search Dodge Charger Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Dodge Charger Experts