HP PAVILION DV7t Battery Tips:

In order to prolong the battery life, please pay close attention to battery maintenance. Rechargeable battery will undergo self-discharging when left unused for a long period of time. Thus, it should always be stored in a 50% charging state and kept in a cool, dry and clean place. To maintain the optimum performance of a battery pack, it is highly recommended to cycle (fully discharging and recharging) it at least once a month. If the laptop runs on adapter, you may take out the battery.

Here are some tips to make your compaq presario cq42 battery last a long time:

• Use the correct recharging procedure for your presario cq42 laptop. Only use the power cord that came with your Hp laptop or an authorized replacement presario cq42 battery.
• Follow correct maintenance for your compaq presario cq42 Battery when not in use. Don't leave it in direct sunlight, areas where it will be exposed to extreme temperatures such as car trunks.
• Use your compaq presario cq42 laptop's power management features. The system will run at lower processor speeds when enabling power management features and it will go into " sleep " mode faster when inactive.
• Buy presario cq42 Battery with internal processors such as Li-Ion batteries.
• Non Li-Ion batteries must be fully discharged and then recharged every 2-3 weeks.
• If you don't use your compaq presario cq42 laptop for a period of time, you must fully discharge then recharge the Hp battery.