How Do I Know if My Dell Laptop Battery Needs Replacing?
Is your Dell laptop battery acting up? Knowing when to replace it can be tricky but not impossible.
To know if your Dell laptop battery needs replacing, restart the system and press F2 to launch BIOS. Select “General” and click “Battery Information” to see your battery’s health.
To make things easy for you, we have written a comprehensive guide on how to know if your Dell laptop battery needs replacing in several step-by-step ways. We’ll also discuss a few ways to improve your Dell laptop battery life.
- Knowing if Your Dell Laptop Battery Needs Replacing
- Method #1: Using BIOS
- Method #2: Using SupportAssist
- Method #3: Using Dell’s Online Diagnostics
- Method #4: Checking Battery Consumption
- Method #5: Checking Battery Charge Time
- Improving Your Dell Laptop’s Battery Health
- Method #1: Using Battery Saver
- Method #2: Decreasing the Brightness and Turning Networks Off
- Method #3: Closing Applications
- Frequently Asked Questions
Knowing if Your Dell Laptop Battery Needs Replacing
If you’re struggling with knowing if your Dell laptop battery needs replacing, our following 3 step-by-step methods will help you go through the process quickly.
Method #1: Using BIOS
Follow these steps to know if your laptop battery needs replacing through BIOS.
- Click the Windows icon on the dashboard, select “Shut down or sign out”, and click “Restart”.
- Press the F2 key on the keyboard to enter the Dell BIOS menu.
- Under “Settings”, click “General” and select “Battery Information” to check your battery’s health.
- Your battery will need replacing if it says your battery’s healthispoor.
Method #2: Using SupportAssist
If you want to check your Dell laptop battery health through SupportAssist, do the following steps.
- Click the Windows icon on the dashboard, search for “SupportAssist”, and launch the program.
- Click “Battery” under “System devices” to check the battery’s health.
- Replace your battery if the battery analysisfails.
Method #3: Using Dell’s Online Diagnostics
Follow these steps to know if your laptop battery needs replacing through Dell’s Online Diagnostics.
- Open a web browser on your Dell laptop and open the Dell supportwebsite.
- Let the website recognize your system, and click “Diagnostics”.
- Scroll down, click “Select individual component” under “Custom component test”, and click “Battery”.
- If the battery analysis result is negative, replace your battery.
Method #4: Checking Battery Consumption
Unusual battery consumption by the Dell system is a common sign of replacement, and you can figure this out with these steps.
- Connect the supplied charger to the laptop and the primary power source.
- Unplug the charger once the battery reaches 100%.
- If your laptop’s battery runs out within an hour, the time has come to replace it!
The Dell laptop battery is supposed to last 2 hours after a full charge, although the time can vary with different models.
Method #5: Checking Battery Charge Time
Dell laptop charging time is a strong indicator of battery issues. To figure this out, plug the charger into your laptop and observe how long it takes to charge. If your battery takes hours to charge and minutes to drain, you should not think twice about replacing it!
Random or unexpected shutdown issues on your Dell laptop can also mean that your battery needs replacing soon.
Improving Your Dell Laptop’s Battery Health
Try these 3 step-by-step methods to improve your Dell laptop battery health and keep it working for a long time.
Method #1: Using Battery Saver
With these steps, you can improve your laptop battery’s health and performance by enabling Power Saving mode.
- Click the Windows icon on your Dell laptop dashboard.
- Open Settings.
- Click “System”.
- Click “Power battery”.
- Select the level at which you want to turn on the “Battery Saver” mode to induce less exertion on the battery.
Remember that turning the Battery Saver mode on will affect your laptop’s performance.
Method #2: Decreasing the Brightness and Turning Networks Off
To maximize your Dell laptop battery life and consumption, decrease the brightness level in the following way.
- Click the Windows icon on your Dell laptop dashboard.
- Open Settings.
- Click “System”.
- Click “Display”, adjust the slider to decrease the brightness, and you’re done.
Method #3: Closing Applications
Another way to boost your laptop battery’s health is to close the open applications you are not using with these steps.
- Right-click on the Windows dashboard taskbar and select “Start Task Manager”.
- Alternatively, simultaneously press the Ctrl Shift Esc keys on the Dell keyboard to head straight to the Task Manager.
- Under “Apps”, right-click on the tasks you’re not working on and select “End task”.
How to find the laptop battery specifications
Nearly all laptops today use a Li-ion battery, but some, especially older ones, use a NiMH (nickel-metal hydride) or Ni-Cad battery. Furthermore, there are different types and sizes of laptop batteries. To determine which laptop battery you have, remove it from the laptop and look at the top or bottom for specifications.
The Dell battery in the image is a Li-ion battery. Its type is Li-ion II, its rating is 10.8V, 4050mAH, and its charging current of 2.5A. Its unique part number (P/N) is also listed.
If your laptop has a built-in, non-removable battery, use one of the other methods explained on this page to find information about your battery. Additionally, replacing a built-in battery usually requires a certified repair center to take the laptop apart and install a new battery.
Windows command line
If your laptop is running the Windows operating system, you can use the powercfg command to retrieve some information about the battery.
- Open the Windows command line.
- How to get to an MS-DOS prompt or Windows command line.
- Type powercfg /batteryreport at the command prompt and press Enter.
- The battery details are output to a file and saved to your Windows account profile folder. The default location of the profile folder is C:\Users\. where is Windows account’s username. Find and open that output file, which has a file name of battery-report.html or similar.
Below is an example of the battery specifications provided in the battery report generated with the powercfg command.
Many laptop manufacturers provide details on their website for which batteries their laptops use, including model and part numbers. Check your laptop manufacturer’s website to get battery details for your laptop model. The website may also allow you to purchase a new battery or provide a link to where you can purchase a new battery.
If your battery is not labeled or you’re unable to read the information on the battery, consider using a third-party utility that’s capable of giving you detailed battery information. For example, BatteryInfoView and BatteryMon are free software utilities that provide battery specifications. The image below is an example of the battery information provided by the BatteryMon utility.
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Compatible Part Numbers
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2 Комментарии и мнения владельцев
Hello, could this also be converted to use as a battery for dash cam in parking mode? How would I use the recharging circuit to keep the battery charged?
Hi Open Green Energy,Thank you for your impressive efforts, I have a question regarding making a larger powerbank from a well functioning bike battery currently wired as 36v 10,4aH 40cells. How can I simply turn it into a USB A and C powerbank?
Do you know how to push through the diods in a charge regulator that comes with a li-ion batt for computers/tools/e-scooters? I’m working on a MacBook battery to make a powerbank. I will also add a solarcell that gives me 2. 3 volts. I use an ATX powersupply testbench as the source of input. It delivers a steady 5,2 v but no amps (I see it with a charger doctor). I need some fresh mind to help me think.
Maybe I need to use the sys detect pin (the middle one on the mac connector).
The battery itself currently has a a 11.81 v charge in it. and it obvously don’t like my tinkering. How do I get those 5 or 2 volts into the 11 v battery? Should I solder on connector wires after the internal charge regulator? I mean that would be weird since the mac itself charges the batt through the connector on the safe side of the regulator. I just don’t understand why I don’t see any amps on the 5 v delivery.