Solved How do I maximize my battery life?

RhinoCan · Sep 20, 2025

I bought a new laptop yesterday and that has inspired me to ask a question that I've been meaning to ask for years: how do I maximize the life of my battery?

I mostly use my laptop at home on my desk although I occasionally bring it to coding sessions at Meetups or even out in my back yard. When it's on my desk, it's always plugged in. When I'm at Meetups, there are not always outlets handy so I'll use the battery if I can't plug in.

I really don't know if that's a good approach to maximize my battery life (which was 2 hours on the Dell that this new laptop is replacing) but it seemed reasonable to me. But now that I've got a laptop with a substantially longer battery life (according to the reviews I've seen) I wonder if it would be wise to take a different approach, like only plugging it in when the battery is low and needs a recharge? I really know nothing about battery chemistry or electronics so I'd appreciate the guidance of people with more knowledge.

gunrunnerjohn · Sep 20, 2025

Leaving a laptop connected to power for hours after the battery is fully charged is probably not the best plan. Some power plans have a setting to stop charging at 80-85% to maximize battery life. For the longest life, the battery shouldn't be discharged below 20-25% and charged to more than 80-85%.

spapakons · Sep 20, 2025

To maximize duration I would fully charge it at 100%. Most batteries will have reduced duration after one year anyway, so there is no point charging to 80% and needed to recharge more frequently. However I would remove the charger and let the battery drop to the warning level, usually 10%, and then recharge to avoid reducing its duration prematurely. Also I would avoid maximum screen brightness and maximum sound volume which consume more power.

gunrunnerjohn · Sep 20, 2025

spapakons said:
To maximize duration I would fully charge it at 100%.

Well, he did ask about maximum lifetime use...

Personally, I'm a Pagan, I just charge mine to 100% when I charge it and plug it in to recharge it whenever an outlet is handy. If I need a battery, I'll replace it.

MisterEd · Sep 20, 2025

Actually is a personal preference. Do you want maximum battery lifespan or maximum laptop runtime on battery.

I have an ASUS gaming laptop. The MyASUS app has these charging options:
* Full capacity mode (100%)
* Balanced mode (Recommended) (80%)
* Maximum lifespan mode (60%)

I tried setting it to 80% but my runtime on battery dropped to 1.5 hours. That is unacceptable so I went back to 100%.

BTW, my laptop has an app called Armoury Crate. I have increased battery runtime by making some changes there. For example, I have set it disable the discrete Nvidia GPU when on battery. Little things like that can make a big difference.

gunrunnerjohn · Sep 20, 2025

MisterEd said:
BTW, my laptop has an app called Armoury Crate. I have increased battery runtime by making some changes there. For example, I have set it disable the discrete Nvidia GPU when on battery. Little things like that can make a big difference.

I'll bet disabling the GPU would make a huge difference!

glasskuter · Sep 20, 2025

These might interest you.

Turn On or Off HDR on Battery in Windows 11

This tutorial will show you how to turn on or off disable HDR when PC is running on battery for your account in Windows 11. HDR content offers better brightness and color capabilities compared to traditional content (sometimes called standard dynamic range [SDR] content). Traditional content...

www.elevenforum.com

Check Battery Status for Estimated Time and Percentage Remaining in Windows 11

This tutorial will show you how to check the battery status for estimated time and percentage remaining in Windows 11. If you have a Windows 11 device that runs on battery power, you can check the battery status to see the estimated time and percentage remaining battery life left to know when...

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Enable or Disable Show Battery Estimated Time Remaining in Windows 11

This tutorial will show you how to enable or disable showing the battery estimated time remaining for all users in Windows 11. If you have a Windows 11 device that runs on battery power, you can check the battery status to see the estimated time and percentage remaining battery life left to...

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Battery saving tips for Windows - Microsoft Support

Learn how to extend your PC's battery life using battery saver and other power-saving tips for Windows.

support.microsoft.com

spapakons · Sep 20, 2025

gunrunnerjohn said:
Well, he did ask about maximum lifetime use... Personally, I'm a Pagan, I just charge mine to 100% when I charge it and plug it in to recharge it whenever an outlet is handy. If I need a battery, I'll replace it.

This battery will last less with frequent charges when it still is over 50%.

spapakons · Sep 20, 2025

MisterEd said:
Actually is a personal preference. Do you want maximum battery lifespan or maximum laptop runtime on battery.

I have an ASUS gaming laptop. The MyASUS app has these charging options:
* Full capacity mode (100%)
* Balanced mode (Recommended) (80%)
* Maximum lifespan mode (60%)

I tried setting it to 80% but my runtime on battery dropped to 1.5 hours. That is unacceptable so I went back to 100%.

BTW, my laptop has an app called Armoury Crate. I have increased battery runtime by making some changes there. For example, I have set it disable the discrete Nvidia GPU when on battery. Little things like that can make a big difference.

Doesn't that affect game performance? I would like to play less on battery with good performance than play more with average performance.

spapakons · Sep 20, 2025

gunrunnerjohn said:
I'll bet disabling the GPU would make a huge difference!

As will underclocking your CPU and reducing performance, but I would rather reduce battery duration than impairing performance. I even set CPU to 100% and screen brightness to maximum when on battery. Most of the time I use my laptop inside the house or office where I can plug the charger any time is needed. I rarely use it outside that need maximum battery duration. So I prefer maximum performance over battery duration. I don't know about your model, but an average laptop battery in Greece costs 30-40€. Third-party of course, I would not buy an expensive genuine battery for an old laptop. So after one year or more that the battery will last less than one hour, I will replace it with a third-party compatible battery. In the meantime I wouldn't have sacrificed performance just to gain a couple of months more battery life. It's not worth it.

Toughbook · Sep 21, 2025

All of the above are good suggestions. Also look at how your fan speeds are set. The fan can really be a drain on some laptops. You should be able to tell if it's running too warm after you have used it for a month or so and you can adjust it from there. My Toughbook laptops have very in depth power, charging settings etc. Although they are not made like your average laptop or for average use.

Try3 · Sep 21, 2025

RhinoCan said:
I'd appreciate the guidance of people with more knowledge

There is no publicly-available data to inform any of us of the best approach to fully / partially charging our batteries.
There are only claims & counterclaims.
And, given the continual evolution of lithium battery technology, the only data that could help you would be data from the manufacturer of your particular battery type.
And our batteries do not exist in isolation, they are controlled by battery management systems whose characteristics are not published.

There is one pretentiously-named website that claims to know what to do but it contains no source data and its author's book on the subject has been castigated in user reviews for merely crossing out old references to NiMH and replacing them with the word Lithium without any adjustment to the discussions presented.

I bought a new laptop battery in Feb 2019 but then largely stopped using battery power [I have external powerpacks that maintain the necessary power supply when I'm mobile]. My internal battery has been there all the time while I've been plugged in or on powerpacks and it still retains 100% Full charge capacity / Design capacity

Denis

Stigg · Sep 21, 2025

In my opinion, all laptop batteries are crap. I've lost count as to how many times I've replaced laptop batteries. Phone batteries are not much better. It's just that they usually draw less power. The best thing you can do is to let them run down often and don't leave them on charge all the time.

Battery technology in general has a long way to go.

zbook · Sep 21, 2025

One or more of these links may be useful:

How to Improve the Performance of a Dell Laptop Battery | Dell US

HP Notebook PCs and Chromebooks - Improving battery performance | HP® Customer Support

Learn how to get the most service and life from your HP notebook battery by following these industry-wide suggested best practices.

support.hp.com

https://support.lenovo.com/us/en/solutions/ht069687-easy-ways-to-extend-your-battery-life-ideapadlenovothinkpad-laptops

How to get the best battery life out of my Acer product - Acer Community

Tips for Maximizing Battery Life in Windows 10. Adjust power settings: Adjust the power settings in Windows 10 to maximize battery life. Go to Settings > System > Power & Sleep and adjust the settings according to your preferences.Close unnecessary apps: Close any unnecessary apps or programs...

community.acer.com

ASUS Battery Health Charging - Introduction | Official Support | ASUS USA

Try3 · Sep 21, 2025

zbook said:
How to Improve the Performance of a Dell Laptop Battery | Dell US

Dell Support also produced this video
Laptop Battery Myths
It does not include any data to substantiate the claims made near the end of the video about the lack of significance of differing decisions about full / partial discharging / recharging.

Denis

TraderGary · Sep 21, 2025

Keeping my brightness at 70% and using Dark Mode is all I do to maximize battery life on this laptop. I easily get 12+ hours of battery life.

spapakons · Sep 21, 2025

I have also read BS about charging a smartphone battery to 80% and not charging overnight but remove charger to extend battery life. I believe all this is totally BS, so I just ignore it, charge my battery overnight which is more convenient and at 100% to have maximum duration. Like I said is not worth compromising just to add 2-3 months more battery life. You are going to replace it eventually, it won't last forever.

Stigg · Sep 21, 2025

We're all Battery Slaves these days.
The best thing to try and do is to minimize the amount of time charging them.

spapakons · Sep 21, 2025

It won't make any difference. Modern laptops stop charging when reaching max configured charge (either 80% or 100%). Don't worry about it.

jimbo45 · Sep 21, 2025

Modern (?? even from around 6 years ago) lithium laptop batteries will probably outlast your laptop - many now are the "flat material foldable like" stuff that fits around / over the entire laptop mobo -- rather than the older fixed rectanguar / cylindrical ones that you could remove like torch (flashlight) batteries.

Windows / other OS'es usually stop charging them at a certain % -- I wouldn't worry about the exact number. However I do suggest once in a while running the whole laptop entirely on battery - not connected to the mains - to almost drain it and then recharge -- but there's discussion on this as the "memory effect" of lithium batteries which was a problem in the past isn't really an issue any more.

Cheers
jimbo

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