XT60 male to male connector?

[OptimusPrime]

I recently purchased a 52v mini and a Luna mini charger. Included with both was an XT60 male to male connector, just curious as to what this would be used for?

[Rodney64]

Thedy may have though that you needed a connection to a shark battery. Which end was it the 5.5mm bullet version or the xlr version