6.While supporting the battery connector, press the battery tab away from the positive side of the connector and pry the battery up out of the securing tabs at the negative side of the connector.

1system battery

2battery socket tab

3positive side of battery connector

4battery socket

7.Properly dispose of the old battery. For more information, see your Product Information Guide.

Replacing the Battery

1. Follow the procedures in Before You Begin.

CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See your Product Information Guide for other important safety information.

CAUTION: The computer stand should be installed at all times to ensure maximum system stability. Failure to install the stand could result in the computer tipping over, potentially resulting in bodily injury or damage to the computer.

2.Remove the computer cover (see Removing the Computer Cover).

3.Locate the battery socket.

4.Remove the existing battery. See Removing the Battery.

NOTICE: To avoid damage to the battery connector, you must firmly support the connector while replacing the battery.

5.Support the battery connector by pressing down firmly on the positive side of the connector.

6.Hold the battery with the "+" facing up, and slide it under the securing tabs at the positive side of the connector.

7.Press the battery straight down into the connector until it snaps into place.

8.Replace the computer cover (see Replacing the Computer Cover).

NOTICE: To connect a network cable, first plug the cable into the network device and then plug it into the computer.

9.Connect your computer and devices to electrical outlets, and turn them on.

10.Enter system setup (see Entering System Setup) and restore the settings that you recorded when you removed the existing battery.

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Dell 690 manual Replacing the Battery