Step #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 | 20V | 4.5A |
| Dell 180W AC Adapter | 180W | Barrel Connector (7.4mm x 5.0mm) | For powerful laptops such as the Precision series | 19.5V | 9.23A |