Push commits to another branch

Is it possible to commit and push changes from one branch to another.

Assume I commited changes in BRANCH1 and want to push them to BRANCH2.

From BRANCH1, is it valid to do:

git push origin **BRANCH2**

And then reset BRANCH1?

That will almost work.

When pushing to a non-default branch, you need to specify the source ref and the target ref:

git push origin branch1:branch2

Or

git push <remote> <branch with new changes>:<branch you are pushing to>