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What You Need To Know About Laptop Batteries in Windows

laptopbattery-battery-thumbAt some point, laptops were the pinnacle of technology. Shortly thereafter, the mobile era saw its advent with smartphones and tablets. Regardless of the violent adjustments to the personal computing arena, it seems that laptops still hold their ground in this brawl (often in the form of “ultrabooks”). The most inherent trouble with laptops was the high level of energy they'll use to run a consistent desktop main system designed for desktop hardware. Most laptops currently available still sell in this way, although ultrabooks made a change towards lighter OS versions. When using a laptop with Windows, possibly that it has advanced battery management options. Before you start with these, though, there are a few things you should be aware of about them.

1: The Battery Meter Isn’t Entirely Accurate.


Perhaps you’ve noticed this in other devices: Battery meters are not very accurate. One minute you might have 40 percent left on the battery, as well as the next minute you’ll notice that percentage cut in two. This isn’t entirely the fault of hardware and software manufacturers, nonetheless they could no less than come out with a reminder. Laptops generally have this issue essentially the most; since they suck the juice out of the battery quicker, the consequence is more obvious. The rate where a battery drops responsible depends on its chemistry. In most lithium-ion (Li-Ion) batteries, the charge falls quicker as the battery loses voltage.

So, as soon as your battery meter reads below 50 %, all bets are off.

2: Windows’ Battery Replacement Notifications Aren’t Always Accurate, Either


In the most recent iterations of Windows, you get a notification when Windows recommends which you go out and get a new battery. The problem is until this notification isn’t always realistic. Your battery could have tons of juice left inside and Windows will just pop up and let you know to go dump some dough on a new battery you don’t need. Again, this isn’t entirely the responsibility of Windows or maybe your hardware. It’s just that batteries are capable of doing some very spooky stuff sometimes. Remember, it’s merely a container with chemicals inside, not a thing that can be super-accurately measured.

So, now which you are aware of those two things…

What to Do About Inaccurate Battery Replacement Notifications

Calibrate the battery. This involves charging it and discharging it with all the your laptop in a very precise manner that will make Windows detect just how much charge it really has left (with regards to Watt hours). To do this:

  • Fully charge your laptop battery then let it sit plugged in for a couple hours. Use the laptop lightly, avoiding things like games or any other applications that overwhelm your hardware. This allows battery to lose the excess heat from the charging phase.

  • Go towards the “Start menu -> Control Panel -> Hardware and Sound -> Power Options -> Edit Plan Settings -> Change advanced power settings”.

  • Once in the advanced settings dialog, scroll down to “Battery” and expand it (click on the plus sign beside it). Expand “Critical battery action.” Select “Hibernate” under “On battery.”

  • Expand “Critical battery level” and change both options to “5%.”


  • Remove the electricity cable from your computer and allow it to drain battery normally until it shuts off. After this is done, just let it rest alone for about six hours.

  • Charge a laptop fully again.

If you still get a battery replacement message when clicking battery icon on the task bar, it happens to be time to customize the battery. This procedure at the very least will not only make Windows give you replacement recommendations with the right time, however it will also get it to show your laptop’s remaining electric batteries more accurately. Your mileage can vary for reasons stated above, though.

Still Got Windows Battery Issues?

If you still have questions regarding how power supply is measured and what you can do to optimize it, leave your question inside a comment below. There are thousands of different laptop models available and the information around is very limited, so don’t feel ashamed to ask an issue when you have not a clue what your laptop does.

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