[cookscreek]

Hey all , just purchased a headroom Cosmic with the din power supply and I want to connect a dc5v center pin pos to USB to a lithium battery for portable use. Can any one tell me what size Barrel this takes.Tks

 

[cookscreek]

Found it Barrel size for Cosmic ( 5.5 mm od / 2.5 mm id center pin positive ) for DC power supply