HP ProBook 4311s HP ProBook 4310s Notebook PC and HP ProBook 4311s Notebook PC - Page 52
Battery, Turn the computer upside down on a flat surface, with the battery bay toward you.
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Battery Removal and replacement procedures Description 8-cell, 2.55-Ah (73-Wh) Li-ion battery 4-cell, 2.20-Ah (37-Wh) Li-ion battery Spare part number 579320-001 579319-001 Before removing the battery, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer. Remove the battery: 1. Turn the computer upside down on a flat surface, with the battery bay toward you. 2. Slide the battery release latch 1 to release the battery. 3. Remove the battery 2. Install the battery by inserting it into the battery bay until you hear a click. Maintenance and Service Guide 4-7