How Long Does LEGO® Battery Motor, 9V (845) Take to Build?

A typical builder finishes LEGO® Battery Motor, 9V (set 845, 27 pieces) in about 5 minutes.

PieceTick estimates build time from piece count, part complexity, the set’s age rating, your experience level, and how you sort pieces. Adjust those on this page for an estimate matched to how you build.