Owning a cordless saw is a big help around the workbench when you are not tripping over a cord or worry abut cutting it if it gets in the way. These are some of the benefits:
No cord
Lockable
Easy blade removal
They can come with different blades to cut glass and other materials.
Lighter than corded ones
You can carry it to the woods to cut small branches
You can use it where there is no electricity
Easier to store being smaller
You can use it to build a tree house in the woods
These are the many benefits of a cordless saw and I am sure once you own one you will find many other uses for yours!