My Little Pony Rainbow Wings Twilight Sparkle Pony

This Pony is 8" tall The lights work but I think the battery may be getting old I have given the pony a light wipe down but I have not tried to redo her mane or tail. I have been told that some collectors have their own process and like to do it themselves. The main and tale still have some original curl and does not seem to be damaged to me