- In addition to a series of blinking LEDs, battery failure offers evidence in its ability to accept and hold a charge. Batteries that are failing or reaching the end of their lifespan offer less charge even when the battery reads full. They can also expend more energy than normal during operation, causing the charge they do possess to last a much shorter period of time than they previously did.
- Dell claims the normal lifespan of a laptop battery to range between 18 and 24 months. As your battery reaches this age, you'll start to notice the amount of available charge decrease. This reduction in charge capacity continues until the battery will no longer hold a charge for any useable time frame. Once your battery reaches this point, purchase a replacement.
- Your laptop battery is covered under Dell's warranty for one year from purchase. If you experience any unusual charge degradation or failure with your battery, contact Dell to inquire about a replacement. Dell's warranty on batteries does not cover any unusual actions, such as disassembly of the battery or use in extreme temperatures that cause premature failure.
- Although every battery will wear over time, adjusting your system settings and laptop usage will help prolong the amount of life you get from your battery. When running exclusively on battery, lower the brightness settings on your LCD monitor to save power. Turn off any programs or functions -- such as Bluetooth -- that you are not actively using to avoid using your battery's charge unnecessarily. Set your laptop to enter sleep mode after a certain period of inactivity.
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