Dell Pro 14 Essential PV14255 handleiding

Laptop

Dell

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Handleiding

Troubleshooting

Handling swollen rechargeable Li-ion batteries

Like most laptops, Dell laptops use Lithium-ion batteries. One type of Lithium-ion battery is the rechargeable Li-ion battery.

Rechargeable Li-ion batteries have increased in popularity in recent years and have become a standard in the electronics

industry due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life.

Inherent to rechargeable Li-ion battery technology is the potential for swelling of the battery cells.

A swollen battery may impact the performance of the laptop. To prevent possible further damage to the device enclosure or

internal components leading to malfunction, discontinue the use of the laptop and discharge it by disconnecting the AC adapter

and letting the battery drain.

Swollen batteries should not be used and must be replaced and disposed of properly. We recommend contacting Dell Support

for options to replace a swollen battery under the terms of the applicable warranty or service contract, including options for

replacement by a Dell authorized service technician.

The guidelines for handling and replacing rechargeable Li-ion batteries are as follows:

● Exercise caution when handling rechargeable Li-ion batteries.

● Discharge the battery before removing it from the laptop. To discharge the battery, unplug the AC adapter from the

computer and operate the computer only on battery power. The battery is fully discharged when the computer no longer

turns on when the power button is pressed.

● Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

● Do not expose the battery to high temperatures, or disassemble battery packs and cells.

● Do not apply pressure to the surface of the battery.

● Do not bend the battery.

● Do not use tools of any type to pry on or against the battery.

● If a battery gets stuck in a device as a result of swelling, do not try to free it as puncturing, bending, or crushing a battery

can be dangerous.

● Do not attempt to reassemble a damaged or swollen battery into a laptop.

● Swollen batteries that are covered under warranty should be returned to Dell in an approved shipping container (provided

by Dell)—this is to comply with transportation regulations. Swollen batteries that are not covered under warranty should

be disposed of at an approved recycling center. Contact Dell Support at Dell Support Site for assistance and further

instructions.

● Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a

compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other

computers with your computer. Always purchase genuine batteries from

Dell Site or otherwise directly from Dell.

Rechargeable Li-ion batteries can swell for various reasons such as age, number of charge cycles, or exposure to high heat. For

more information about how to improve the performance and lifespan of the laptop battery and to minimize the possibility of

occurrence of the issue, search Dell laptop battery at Dell Support Site.

Dell SupportAssist Pre-boot System Performance

Check diagnostics

About this task

SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell

SupportAssist Pre-boot System Performance Check diagnostics is embedded within the BIOS and launched by the BIOS

internally. The embedded system diagnostics provides options for particular devices or device groups allowing you to:

● Run tests automatically or in an interactive mode.

● Repeat the tests.

● Display or save test results.

● Run thorough tests to add more options and obtain details about any failed devices.

Troubleshooting 133

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