By: Prof. Dr. Fazal Rehman | Last updated: January 11, 2025
Battery Health Check – Dell LaptopStep #1 Press the power ON button to switch on your computer.
Step #2 Press F12 again and again until setup appears.
Step #3 Select “BIOS Setup”.
Step #4 Select “General”, and then “Battery information”.
Step #5 Now, we can see battery health from 0 to 100 and it also shows charger’s watt.
Important information to know about percentage of battery health
100% (Excellent Condition): The battery is in good health and holds its full charge.
80-99% (Good): The battery is still functioning well, but it may have experienced some wear over time. It’s normal for the battery to degrade slightly as it ages.
60-79% (Moderate): The battery is starting to show signs of wear and may not hold a full charge for as long as it used to. You might notice shorter usage times between charges.
40-59% (Fair): The battery has significant wear. It will likely need to be charged more frequently, and its lifespan may be considerably reduced.
20-39% (Poor): The battery health is low. It may not hold a charge for long, and it’s advisable to consider replacing the battery soon.
Below 20% (Critical): The battery is at the end of its lifespan. You may experience very short usage times, and it’s highly recommended to replace the battery.
Important information to know about laptop chargers
Model
Power Output
Connector Type
Compatibility
Voltage
Amperage
Dell 45W AC Adapter
45W
Barrel Connector (7.4mm x 5.0mm)
Suitable for smaller Dell laptops, like the Inspiron series
19.5V
2.31A
Dell 65W AC Adapter
65W
Barrel Connector (7.4mm x 5.0mm)
Compatible with Inspiron, XPS, and Latitude models
19.5V
3.34A
Dell 90W AC Adapter
90W
Barrel Connector (7.4mm x 5.0mm)
Used for larger models like Inspiron, Latitude, and XPS
19.5V
4.62A
Dell 130W AC Adapter
130W
Barrel Connector (7.4mm x 5.0mm)
Common for larger, higher-power laptops like XPS, Latitude
19.5V
6.7A
Dell USB-C 65W Adapter
65W
USB-C
Used with newer Dell laptops that support USB-C charging (like XPS and Latitude series)
20V
3.25A
Dell USB-C 90W Adapter
90W
USB-C
Works with USB-C-enabled Dell laptops like XPS and Latitude
