I don't really know much about rage and bipolar. But it is worth looking into for other reasons as well. How did you grow up? Do you hold resentment over things in life? Do you keep your feeling bottled up until they blow? Are you under extreme stress right now?

My stepfather who has absolutely no issue with mood disorders rages over the most simple things at times. IDK why he just does. He gets frustrated easily.
Otherwise he is the most stable person mood wise I have ever met

personally for me, I don't have the energy to get angry during depression.
IDK really. Wish I could be more help