Battery life HP Elite Dragonfly Notebook PC

[Dimitrije2407]

Greetings Community,

Namely, the battery (L52581-005) on the laptop was replaced, but during active use the battery lasts barely 4 hours, while it is emphasized that it can last 18 hours.
Attached is the Windows battery report.
I use the device for work, emails, etc...
Can you give me some advice on how long the battery should actually last and if this is okay, note that the battery was replaced with an HP original battery at an authorized service center.

https://drive.google.com/file/d/1eUiwGnqlX8eruwMNLk48NhNvBViJFicn/view?usp=sharing - Battery Report

[Jupitero]

Hello.

First, I don't have the original Dragonfly, so no real experience here about your laptop.

You can check your battery life and settings with HP Power Manager. If you don't have it installed, you can download and install it from HP website. Besides the battery serial/manufacturing date (as seen on your report) you can check the current battery charging mode - if it is set to charge to 80% to extend the battery life, you will lose one fifth of your battery runtime.

Battery run time of course depends on the laptop power usage vs. battery capacity. HP has specified your laptop to run "up to" 14 hours if you have the UHD (4K) display, 24 hours if you are using the FullHD display option. Which display do you have?

Those battery usage numbers HP has published depend on many things. To reach those numbers, HP has configured the laptop with hardware options that are the most power efficient, e.g. minimum amount of memory, least powerful CPU and SSD etc. During battery testing, the display is set to relatively dim setting, every possible power saving option is in use, all wireless (BT,WLAN,LAN,WWAN) capabilities are disconnected, keyboard backlight is turned off, no external devices connected, no antivirus, and so on...

As you can see from the Quickspecs document, HP has benchmarked the Dragonfly with Bapco Mobilemark 14 running on Windows 10. If you are looking at battery numbers on laptop review websites, check their methodology if you want to reproduce the tests.

Check the Windows Settings -> System -> Power & Battery -> Battery Usage to see which applications tax the CPU most when on battery. For instance, on my laptop I can see Whatsapp there in the first place even though I barely use it...

[Jax38]

The Battery life is absolutely terrible. Maximum is 3 hours and a bit hours with all the settings. It is absolutely NOT possible to get the published number of HP hours. If you leave it on to "sleep" perhaps but that is not the user scenario. This laptop for its price tag is commercial grade system designed for business users to be onsite with clients. I have to plug in all the time. It looks great but the battery performance is terrible. HP Support has confirmed that their optimal test was to do nothing and let it sit to get the numbers. If anyone is to get it to run even 8 hours without plugging in, with real use, I'd really like to know how.

[Jax38]

The maximum I was able to achieve through multiple  real business usage (Outlooking running, MS TEAMS (conference calls, Word, Excel, Chrome web-browser - Confluence and Jira running) was 3hours and 20 min. It was absolutely terrible. HP Support (don't know if these agents really know) candidly stated their testing condition was to turn it on and left it alone. I love the look of the product but I don't advocate anyone buying it. Replacing the battery (shipping and returning) is going to be a nightmare to reinstall all my applications and security).