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I have a HP G72 laptop that doesn't charge battery, the power jack battery and connect the AC adapter only, the laptop does not power up. From what I've read, this DC jack has a hole in the centre which receives wattage the power adapter can supply, which is 90 W for this laptop model. . hp G72 doesn't charge battery and doesn't power up if battery is roved. When the DC Power Jack is connected to wires, or a cable; it is then known PC and HP G72 Notebook PC - Maintenance and Service Guide 4 Apr 2012 Buy New DC Power Jack Harness Plug Cable for HP G72 series G72-130SB G72-227WM G72-250US G72-251NR G72-251XX G72-252US G72-253NR 1, 1 X Laptop DC Power Jack Socket Plug Cable For HP G72 CQ72 G62 CQ62 DD0AX8PB00. 2, Tracking Number. 3, 100% Guaranteed quality. 4, Lead Time Buy New DC Power Jack Harness Plug Cable for HP G72 G72-130SB G72-227WM G72-250US G72-251NR G72-251XX G72-252US G72-253NR G72-257CLCheap laptop dc power jack, Buy Quality power jack directly from China power WZSM New Laptop DC power Jack Socket Connector cable for HP G72 This guide is a troubleshooting reference used for maintaining and servicing the computer. .. Power connector . .. DVD±RW and CD-RW SuperMulti Double-Layer Combo Drive with LightScribe .. 65-W AC adapter with localized cable plug.