XT60 connectors (male/female)
Male XT60 connectors (5pcs/bag)
XT60 Female w/ 12AWG Silicon Wire 10cm (5pcs/bag)
XT60 Male w/ 12AWG Silicon Wire 10cm (5pcs/bag)

I got these connectors to replace the deans connectors on all of my batteries.  These are really well made and are easier to connnect/disconnect than deans.  5 pairs cost about $3.49 at HobbyKing.  They’re bigger than the standard T-connectors but much easier to handle.  I like how you also use bullet connector to attach to the female ends to if you desire.