“J” connector tip 7.4×5.1×0.6mm to Female 5.5×2.1mm.
Adapter: Male 7.4×4.5×0.6mm plug on one end and female 5.5×2.1mm plug on the other. Connector has a negative center pin. Connects to V72 Battery Output Wire.
Note: For some HP and Dell laptops, the “J” adapter may physically fit but will not charge the laptop. In either case, use the brand specific laptop adapters linked below.
Dell: Inspiron, Inspiron I15R
HP: Dm Series, Dv Series, G Series, Dv7-7010US, Dv7-6C90US, HP Pavilion 10, TouchSmart 10z
Lenovo: ThinkPad T60, X60, R60
HP 7.4×5.1×0.6mm – Female 5.5×2.1mm Adapter
Dell 7.4×5.0mm – Female 5.5×2.1mm Adapter