Dell Precision M40 - Manual (Page 5)

Detecting Battery Problems
To avoid installing a defective battery in your computer, check the battery's charge by pressing the battery test button . The battery gauge light will
not light if the battery is completely drained. A battery problem may prevent the battery from being charged to its full potential and can lead to
unpredictable operation.
Battery Disposal
When your battery no longer holds a charge, call your local waste disposal agency or environmental agency for advice on disposing of it. To
purchase a new battery,
call Dell or go to the Dell website at http://www.dell.com.
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Light After Installing a
Battery Problem Action
Alternately green and amber Battery too hot to charge Turn off the computer, and let the battery and computer cool to room
temperature.
Amber for 4 seconds after:
l connecting or disconnecting
AC adapter
or
l pressing the power button
Defective battery Replace the battery. Call Dell or go to the Dell website at
http://www.dell.com.
Rapidly amber Defective battery Replace the battery. Call Dell or go to the Dell website at
http://www.dell.com
CAUTION: If your battery is damaged, or if it no longer holds a charge, dispose of it promptly and properly. Do not dispose of it
along with household waste. Call your local waste disposal agency or environmental agency for advice on disposing of the
battery.