These typically find their way onto speed controls or chargers, dischargers, etc. Few things in life will test your patience like trying to solder one of these up from scratch when you're in a hurry. Get a few of these pre-mades and leave them in your pit, ready to use. Might just be the cure for baldness.

(see what we did there, implied that you'd pull out your hair for the sake of humor). It could happen though! Don't risk it. Put a few in your cart.