- Description What is a Laptop Power Jack ? The power jack is a crucial component of any laptop, ensuring a steady power supply for charging the battery and running the device. Over time, this small but essential part can wear out due to frequent use, accidental pulls, or internal damage. The power jack, also known as the DC-in jack or charging port, is the point where you connect your laptop charger. It transfers electrical power from the adapter to the motherboard and battery, keeping your device powered. Common Issues with Laptop Power Jacks: Due to constant plugging and unplugging, the power jack can develop various problems, such as: Loose Connection – The laptop may not charge properly due to a worn-out or broken jack. Intermittent Charging – If the connection is unstable, the battery may charge only when the charger is in a specific position. No Power Supply – A completely damaged power jack can prevent the laptop from turning on. Burnt or Broken Pins – Internal pins inside the power jack may bend, break, or burn out due to power surges. Compatible Devices: Compatible Part Numbers HP Pavilion DV7-4000 DV7-4xxx Series: DV7-4000 DV7T-4100 DV7-4008CA DV7-4038CA DV7-4051NR DV7-4053CL DV7-4054CA DV7-4057CA DV7-4058CA DV7-4060US DV7-4061NR DV7-4063CA DV7-4065DX DV7-4069WM DV7-4070US DV7-4071NR DV7-4073CA DV7-4074CA DV7-4077CL DV7-4078CA 605364-001