These are some signs that the battery, as shown in Figure 1, may need to be replaced:
- The laptop shuts off immediately when AC power is removed.
- The battery is leaking.
- The battery overheats.
- The battery does not hold a charge.
If you experience problems that you suspect are battery related, exchange the battery with a known, good battery that is compatible with the laptop. If a replacement battery cannot be located, take the battery to an authorized repair center for testing.
A replacement battery must meet or exceed the specifications of the laptop manufacturer. New batteries must use the same form factor as the original battery. Voltages, power ratings, and AC adapters must also meet manufacturer specifications.
NOTE: Always follow the instructions provided by the manufacturer when charging a new battery. The laptop can be used during an initial charge, but do not unplug the AC adapter. Ni-Cad and NiMH rechargeable batteries should occasionally be discharged completely to remove the memory effect. When the battery is completely discharged, it should then be charged to maximum capacity.
CAUTION: Handle batteries with care. Batteries can explode if they are shorted, mishandled, or improperly charged. Be sure that the battery charger is designed for the chemistry, size, and voltage of your battery. Batteries are considered toxic waste and must be disposed of according to local laws.
Replacing a Battery
To remove and install a battery, follow these steps:
Step 1. Power off the laptop and disconnect the AC adapter.
Step 2. Remove the cover for the battery, if needed.
Step 3. Move the battery lock to the unlocked position.
Step 4. Hold the release lever in the unlock position and remove the battery.
Step 5. Ensure that the battery contacts inside of the laptop and on the battery are clear of dirt and corrosion.
Step 6. Insert the new battery.
Step 7. Make sure that both battery levers are locked.
Step 8. Replace the cover for the battery, if needed.
Step 9. Connect the AC adapter to the laptop and power on the computer.
Replacing a DC Jack
A DC jack, as shown in Figure 2, receives power from a laptop’s AC/DC power converter and supplies the power to the system board.
If your DC jack is replaceable, follow these steps:
Step 1. Power off the laptop and disconnect the AC adapter.
Step 2. Remove the battery and any other components as described by the manufacturer.
Step 3. Unfasten the DC jack from the case.
Step 4. Unfasten the power cable that is attached to the DC jack.
Step 5. Disconnect the power cable connector from the motherboard and remove the DC jack from the case.
Step 6. Connect the power cable connector to the motherboard.
Step 7. Secure the power cables that are attached to the DC jack to the case.
Step 8. Secure the DC jack to the case.
Step 9. Insert the battery and reinstall any other components that were removed.
Step 10. Connect the AC adapter to the laptop and power on the computer.
NOTE: If the DC jack is soldered onto the motherboard, the motherboard should be replaced according to the manufacturer of the laptop.