Adapter: Male 7.4x4.5x0.6mm plug on one end and female 5.5x2.1mm plug on the other. Connector has a negative center pin. Connects to V72 or V88 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.