Compaq 12XL500 Models XL300, XL300A, and XL300B - Maintenance & Service Gu - Page 29

Presario 1200XL Series Model XL300, XL300A, and XL300B Maximizing the Energy Stored To maximize the energy stored in the battery pack, follow these guidelines: • Condition the battery pack at least every 30 days to improve overall battery performance. • Keep a battery pack in the Notebook when using it with AC power to supply the battery pack with a constant trickle charge. • Store the battery pack in a cool, dry place when not in use. Conditioning a Battery Pack Ä CAUTION: To avoid loss of data, ensure that all data is saved before discharging a battery pack. To condition a battery pack, complete the following steps: 1. Plug in the AC adapter and allow the battery to charge until the fast charge arrow on the display disappears. Your battery gauge may read 100 percent for a period of time before the arrow disappears. Do not unplug the AC adapter until the arrow is gone. 2. Unplug the AC adapter and allow the battery to drain until the Notebook reaches hibernation and turns itself off. ÄCAUTION: Do not unplug the AC adapter during this process or you will need to start the process over again with Step 1. You may use the Notebook while the battery is draining. 3. The battery is re-conditioned. 4. Plug in the AC adapter and begin using the Notebook. The table below shows battery pack charge times by model. Computer Li-Ion Battery Pack NiMH Battery Pack Battery Charge Time On Line 4.5 hours premature termination TBD Off Line 2:50 hours TBD 2 BATTERY OPERATIONS PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES