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Released in 2019, the Asus ZenBook Pro Duo UX581GV is a unique laptop with a main 15-inch OLED touchscreen along with a secondary touchscreen just above the keyboard.

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New Battery? It is only lasting an hour and fan has been running more

It used to last up to 3-4 hours without the second screen on, unfortunately I've noticed over the past few days that the battery is only lasting an hour, or less, after charging to full power and the fan has been running a lot more. I have already gone through settings and uninstalled apps I no longer use and reduced the number of apps running in the background, but nothing is helping. The increased fan usage might be because I just downloaded a virtual machine to run some software, but I thought it'd be worth mentioning. So, should I replace the battery or could something else be going on?

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Battery problems on the zenbook duo series is a normal problem.

The laptop comes with the MYASUS app.

Run a diagnostics it will tell you whether there is a problem with it

If it doesn't show you need to check the Battery health

If you use windows 10:

Open the Start menu by clicking it (or by pressing the Windows key on your keyboard) and launch the Command Prompt.

Next at the end of the prompt type powercfg /batteryreport

Assuming everything went smoothly, you should see a message in the Command Prompt informing you that a battery report has been saved to your user folder

Go to file Explorer and go to "This pc"

Go to devices and drivers

There you will see battery report

Left click and you will be redirected to a tab with the info you need.

If you use windows 11: it is the same.

WHEN IT COMES TO THE FAN

go to pro art creator hub and you will be given choices of how fast you want your fan to spin

Hope this helps

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Hi @meowster999 ,

Have you tried uninstalling the VM software just to see if it was impacting on the battery usage?

Create a battery report to check the status of the battery.

When you have the report, compare the Design Capacity value versus the Full Charge Capacity value shown in the report. For a good new battery they should nearly be the same value. You can work out the condition of the battery as a percentage by using the formula Full Charge Capacity value x 100 ÷ Design Capacity value.

If the fan(s) are running faster and for longer perhaps the CPU's and GPU's thermal paste may need refreshing as it may have dried out so it is no longer transferring the heat away as efficiently as before. Also the fans may need cleaning as well.

Here's a video that shows how to open the laptop and to remove the fans so that they can be cleaned and the heat sinks so that the CPU/GPU can be accessed.

Here's the ifixit How to Apply Thermal Paste guide that may also help.

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I cannot uninstall VMware right now because I’m using it for classes but I decided to look at the programs that might be running the cpu too high and I found one of the VMware programs vmnat was taking 11-25% of the cpu at any given time, I replaced the .exe and I got more battery life back. Another question for you, what is the life expectancy of thermal paste? Is it based upon how old the laptop is or the amount the laptop is used with heavy programs like CAD?

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@meowster999

Thermal paste life is based on the quality of the paste that is used (who knows - it depends on who you ask, everyone has their own preferences) and also the conditions that the laptop is operated in i.e. heavy or normal use, hot surrounding air temp, dusty surroundings etc. Hot surrounding temps most of the time means the fan has to work harder which contributes to drying out the paste quicker. Dusty conditions over time clogs the fans making them less efficient

My view is the thermal paste should be checked/replaced every 3-5 years depending on the above criteria i.e. lots of heavy use then ~3 years, normal use ~5 years but it can vary.

The thing is it doesn't last forever and dries out so the heat transfer from the CPU/GPU is not as efficient for the fans to extract the heat away i.e,. more heat retained by the CPU/GPU making them work at a higher temp

Usually the amount of fan noise is a good indicator. If it is running faster more often and for longer periods than usual i.e. noisier, this indicates that it is trying harder to keep the CPU/GPU temps down to be within the safe operating limits for them

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It sounds like your laptop's battery life has significantly decreased, and you're also experiencing increased fan activity. Several factors could contribute to these issues, including the battery itself, software changes, or hardware problems. Here are some steps you can take to diagnose and potentially address the problem:

1. Check Battery Health: Many laptops have built-in diagnostics tools that can assess the health of your battery. Check your laptop's user manual or manufacturer's website for instructions on how to access these diagnostics.

2. Monitor Resource Usage: Use your operating system's task manager or activity monitor to identify any processes or applications that are consuming an unusually high amount of CPU or memory. This could help pinpoint the source of the increased fan activity and potentially address it by closing or uninstalling problematic programs.

3. Review Recent Changes: Reflect on any recent changes you've made to your system, such as installing new software or updates. As you mentioned, the virtual machine software could be contributing to the increased fan usage. Consider temporarily disabling or uninstalling the software to see if it improves battery life and fan activity.

4. Reset Power Management Settings: Sometimes, power management settings can become corrupted or misconfigured, leading to decreased battery life. Resetting these settings to their default values may help. You can typically find power management settings in your laptop's control panel or system preferences.

5. Update Drivers and Firmware: Ensure that your laptop's drivers and firmware are up to date. Manufacturers often release updates to address performance issues and improve compatibility with software updates.

6. Perform a Battery Calibration: Some laptops benefit from occasional battery calibration, which involves fully charging and then completely draining the battery to recalibrate its capacity readings. Consult your laptop's documentation for instructions on how to perform a battery calibration.

7. Consider Battery Replacement: If none of the above steps resolve the issue, it's possible that your battery has reached the end of its lifespan and needs to be replaced. Contact your laptop manufacturer or a certified repair technician to inquire about battery replacement options.

In summary, while a battery replacement may be necessary if your laptop's battery health is poor, it's worth exploring other potential causes first, such as software issues or recent changes to your system. By systematically troubleshooting and addressing these factors, you may be able to improve your laptop's battery life and reduce fan activity without the need for a replacement.

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Thank you for the advice. I looked at what programs were weighing down my cpu and found it was vmnat.exe which is a common issue with the newer versions of VMware. I will be preforming a battery calibration when I get time to see how my battery is doing after 3 years of Engineering school (with all the lovely programs like Solidworks, running on my computer) Is there anything that I should be looking out for when calibrating the battery? Something that would need to be fixed right away if caught by a battery calibration? Any websites or forums would be greatly appreciated.

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