Category: Laptop battery

The holiday shopping season is always a great time to buy a new Windows laptop, but shoppers looking to spend in 2023 seem especially spoiled for choice. The Asus Zenbook 14 OLED UM3402 tries to stand out with its AMD processor and OLED display. Although its CPU and GPU performance lags behind some alternatives, it’s largely a success. Read on to learn more.
Looking for more options? Check out PCWorld’s roundup of today’s best laptops. ASUS Zenbook 14 OLED: Specs and featuresThe ASUS Zenbook 14 OLED UM3402 is powered by the AMD Ryzen 7 7730U processor. It has 8 cores and 16 threads, which sounds like a lot, but buyers beware: this is a rebadge of the older Zen 3

architecture, not the Zen 3+ or Zen 4 architecture found in more expensive AMD-powered machines. Asus sent me a full-fat version of the Zenbook 14 OLED UM3402 with a Ryzen 7 7730U, 16GB of RAM, and a 512GB SSD for $869.99. The entry-level model with an AMD Ryzen 5 7530U, 8GB of RAM, and a 256GB SSD costs $699.99. I expected the performance of this model to lag significantly behind the model I tested, but the cheaper configuration retains the OLED touchscreen.ASUS Zenbook 14 OLED: Design and build quality
Asus’ Zenbook laptops once stood out for their gorgeous “concentric circle” designs, but they’ve gone back to basics in recent years. This is a bit disappointing. The Asus Zenbook 14 OLED UM3402 looks good, but it’s not great either. It’s just another black laptop that has a subtle metallic sheen when the light hits it just right.

The Asus’s dimensions are nearly identical to alternatives like the Lenovo ThinkBook Gen 6, Acer Swift 14, Dell Inspiron 14, and HP Pavilion Plus 14. All of these laptops use thin display bezels on three sides for a similar look to older 13-inch laptops The same goes for weight, although the Zenbook 14’s 3.06 pounds does put it on the lighter end of the spectrum for laptops under $1,000. It’s easy to throw into a backpack or crossbody bag, and once packed away, you’re unlikely to notice it’s there.
ASUS Zenbook 14 OLED: keyboard, trackpadMy hands immediately found a comfortable flow across the Zenbook 14 OLED UM3402’s keyboard. While some keys, such as Tab and Backspace, may be larger, the alphanumeric keys are easy to find and well spaced between them. There’s also plenty of space on the palm rest, which makes the keyboard comfortable to use for hours on end.

Key travel isn’t that impressive. There’s healthy key travel and good key activation feel, but bottoming out feels vague. It works, but it’s not sharp, which is one aspect of the laptop that doesn’t feel as premium as it should.
Asus’s touchpad is typical of budget Windows laptops. It measures almost exactly five inches wide and about three inches deep. Although the depth feels a little limited when scrolling, the space is enough to use most multi-touch gestures comfortably.

ASUS Zenbook 14 OLED: display, audioASUS was quick to adopt OLED panels when they became more widely available in 2021, and the Zenbook 14 OLED UM3402 is no exception. It has a 14-inch OLED touch screen with a resolution of 2880×1800 and supports HDR. It’s a great display that’s well above the Zenbook 14’s modest price tag. OLED’s effectively infinite contrast ratio delivers deep, convincing shadows that draw your attention to the display. Combined with best-in-class color performance and a wide, vibrant color gamut.Clarity is another benefit.

ASUS Zenbook 14 OLED: PerformanceThe Asus Zenbook 14 OLED UM3402 I tested is equipped with AMD’s Ryzen 7 7730U processor, an eight-core, 16-thread processor with a maximum Turbo Boost speed of 4.5 GHz. It comes with 16GB of RAM, a 512GB SSD, and integrates AMD Radeon graphics and eight compute units.

These specs set the stage for a showdown between AMD and Intel. The Asus Zenbook 14X OLED I reviewed a few months ago shares many specs with the Zenbook 14 UM3402 but comes with an Intel Core i5-13500H. The two are also priced similarly (the 14X OLED has an MSRP of $799,

while the 14 UM3402 has an MSRP of $869.99). PCMark 10, an overall system benchmark, scored a whopping 5,812 points. That easily beats the Intel Core i5-13500H-powered Zenbook 14X OLED, which scored just 5,089. However, there is an important caveat. The 14X OLED only has 8GB of RAM, which does seem to affect its score in this benchmark. The Zenbook 14 does a great job here, but it’s unclear whether AMD’s Ryzen 7 7730U deserves the credit.
Cinebench R20, a highly multi-threaded CPU benchmark, again rated the Zenbook 14 OLED midrange package at 4,289 points. This time around, however, the Intel-powered alternative came out ahead with a score of 4,724 points. I find this a bit surprising , since Intel’s Core i5-13500H only has 12 physical cores, four less than its AMD rival. It’s a similar story in Handbrake, where the Ryzen 7 7730U’s performance is relatively lackluster.

Transcoding a 1080p movie from .mp4 to .mkv using the H .264 codec took over 31 minutes, which is nearly two minutes longer than the Intel-backed alternative. AMD-powered Zenbooks are also significantly worse than other small laptops, but to be fair, the Lenovo Slim Pro 9, Samsung Galaxy Book3 Pro 360 , and HP Dragonfly Pro are more expensive.

CPU benchmarks show Ryzen 7 7730U is a powerful processor, butASUS Zenbook 14 OLED: Battery lifeThe Asus Zenbook 14 OLED UM3402 combines a power-hungry Ryzen 7 7730U processor with a surprisingly large 75Wh battery. This sounds like a secret to longer  Asus Zenbook battery life—and it is.
Asus Zenbook batterylife results I saw an excellent 15 hours and 20 minutes of battery life on PC World’s standard battery test, which loops a 4K file of the short film Tears of Steel. That’s nearly five hours longer than the Asus Zenbook 14X OLED with an Intel Core i5-13500H processor!
This was a light load test, and I would normally expect actual  Asus Laptop Battery life to be a little shorter (10 to 12 hours for general Microsoft Office productivity and web browsing is comparable). Still, as the picture shows, the Zenbook 14 is clearly more durable than many of its competitors.

The Zenbook 14 OLED’s portability is further enhanced by its tiny 65-watt USB-C power charger, which measures just 2.25 inches wide and 1 inch thick. It’s easy to throw in your bag, and if you forget, the laptop can be charged via a variety of USB-C power adapters.ASUS Zenbook 14 OLED: Should you buy it?

The Asus Zenbook 14 UM3402 is a solid entry into the sub-$1,000 laptop segment. It feels more durable than many of its competitors, has a gorgeous 14-inch OLED touchscreen, and has over 15 hours of   Asus Zenbook 14 battery life. These perks are hampered by mediocre CPU and GPU performance, a bland design, and a mediocre touchpad. Whether it’s right for you depends on your priorities. Those looking for Asus Laptop Battery  life and a beautiful display should definitely grab it, while performance-focused shoppers should ignore it.

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Follow these tips to maximize your laptop’s battery life and ensure it lasts while you’re at work or school.
Protect your battery with PC ManagerComputer Manager provides three modes to balance PC battery PC battery life and health in different scenarios. By controlling the level at which charging starts and stops, the number and length of charging cycles is reduced, effectively extending the life of the battery.
Family Mode 1Choose this mode when you need to charge your laptop continuously. In this mode, charging starts when the battery level drops below 40% and stops when it reaches 70%.
Office mode 2This mode is for you when you need to unplug the power adapter at any time. In this mode, charging starts when the Laptop Batteries is below 70% and stops when it reaches 90%.
Travel mode 3Use this mode when you don’t have the power adapter at hand for a long time. In this mode, charging starts when the battery is below 95% and stops when it reaches 100%.

How to enable different modes in PC Manager?
1. Open Computer Manager, click in the upper right corner, and then click Settings.

Click the arrow to check next step
Customize your power planYou can reduce power consumption by selecting sleep and display settings.
How to enable this feature?
Click the Windows icon > Settings icon > System > Power & sleep > Additional power settings > Change plan settings. Here, you can select sleep and display settings to manage how your computer uses power.

Click the arrow to check next step
Optimize other settingsAdjust brightness 1Dim the screen to save battery in dark environments.
Turn off Wi-Fi2Disconnect Wi-Fi when not in use as it continues to consumeLaptop Batteriesas long as it is connected.
Close application 3Remember to close apps when you are not using them. Background apps and processes can drain your battery significantly.
Keep your laptop powered on while charging other devicesWhen other devices are connected to your laptop via USB, make sure they are plugged in and powered on, otherwise the battery will drain unusually quickly.

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It’s a fairly simple question with a surprisingly complicated answer. Here’s why you might not want to leave your laptop charging every day and night. It is safe to leave your laptop plugged in all the time, but ensure that the charger and electrical outlet are in good working order.

Leaving your laptop on the charger constantly can age the battery faster, reducing its lifespan and charge capacity.

 To prevent damaging the battery, charge it to full, unplug it, and avoid unnecessary charge cycles. OS-level mitigation tools can also help.
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The benefit of owning a laptop is that you can take it with you when you go somewhere. Portability is a big deal, after all, and there are even ultraportable laptops out there specifically for travel. However, we as humans don’t travel 24 /7/365. So, where does a laptop typically go? On a desk with a charger connected.Despite being a simple

question, the answer is rather complicated thanks to how battery chemistry works. Should you leave your laptop battery connected all the time ? Let’s find out.
Lenovo’s new Go multi-device mouse for travel can wirelessly charge photo 2Is it safe to leave your laptop plugged in all the time?In terms of physical safety, yes, it’s perfectly safe to leave your laptop plugged in all the time.

There is virtually no risk of anything catching on fire. Modern laptops have voltage control built into the machine that knows when the battery is full and will stop the charge, even if the charger is connected. These mechanisms rarely fail, and laptops have safety mechanisms that will sever the connection before real damage occurs.
However, that all assumes that the charger itself and the electrical outlet it’s connected to are in good working order. A short in an outlet can cause a fire, but that’s not limited to a charging laptop. Make sure to check up on your outlets occasionally as a general piece of advice.

apple found out what s messing with the new macbook pro s battery life image 1Pocket-lintShould you keep your laptop charging all the time?This is where the complexity comes in. There are a variety of things that are bad for lithium-ion batteries. Keeping the battery at too low of a charge as well as too high of a charge can cause the battery to age prematurely. As batteries age, they lose their ability to carry a full charge. Thus, while it won’t blow up your laptop, you may notice that your laptop battery doesn’t seem to hold as much charge as it once did.

The other worry is heat. Lithium-ion batteries lose charge over time even if the device is powered off. That means the battery is almost continuously getting topped off, which introduces heat. Heat, like high or low charge, can prematurely age the battery as well, which will cause it to lose charge capacity over the long-term.

apple patents fuel cell  laptop battery for long lasting macbook image 1Pocket-lintFinally, every lithium battery ever produced has a finite number of charges before it simply cannot charge anymore. By leaving it on AC, you’re introducing extra charge cycles that the battery doesn’t need since it’s off. This will shave off even more lifespan from the battery.
Thus, leaving your laptop on the charger is a bit of a triple whammy. Your laptop won’t catch on fire or receive any damage in the short-term. However, you will age out the battery much faster than if you used it off of AC power from time to time, which will cause the battery to die sooner than expected.
MacBook battery photo 7Pocket-lint
How to tell your laptop’s battery damageThere are methods for both Windows and macOS machines to check in on battery health. We’ll go through each one briefly and then go over how to read the reports.

MacClick the Apple menu button and select System Information.Open the hardware section in the left margin and select the Power option.Your battery information will be there.Admittedly, macOS is much easier than Windows in this regard, so you should be able to find it relatively quickly.

Windows PCOpen a Command Prompt. The easiest way to do this is to type “CMD” without the quotes in the Windows search bar.Type powercfg /batteryreport and press Enter on your keyboard.Command Prompt will generate a battery report and then save it to a folder, which it’ll show you when you enter the command.Navigate to that folder on your machine and access the report.The report is in HTML, so you’ll need to use a browser to open it. Fortunately, all browsers can handle HTML files.
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How to read your laptop’s battery informationMacFor macOS, it’s quite easy. The Power section will show you Cycle Count, which is how many times you’ve charged the battery. Under that is Condition. If it says anything other than Normal, then you may want to schedule a trip to the Apple Store to get it investigated. Maximum Capacity tells you how much charge your battery can still hold. Only brand new Macbooks show 100%, so expect to see yours below that.

Windows PCFor  Windows, it’s a bit more complicated. The information is broken up into the days that you used your laptop. Thus, if you look under the At Full Charge section and the Active column, you’ll see how long your battery was expected to last that day. You can compare that to the At Design Capacity section under the Active column to see how long the battery would last if the battery was brand new. Compare to see how much battery life you’ve lost.
Laptop battery

How to prevent damaging your laptop batteryMostly, just don’t leave it on the charger any longer than necessary. Charge it to full, unplug it, and then don’t plug it back in until it needs to charge again. This doesn’t prevent battery aging because nothing does , but it’ll age much more slowly when it’s not being held at 100% charge by the charger. Yes, you might lose a few percent of battery by the time you turn it back on, but it’s a small price to pay.

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he laptops with best battery life will outlast work or play
Laptops with the best  Laptops battery life are what you need to function as a professional, a student, and a binge-watcher of TV shows. Your battery is always draining, even when idle — yeah, your laptops, too. So instead of arriving to something dead and in need of charging, let’s find you a lively companion. Our list of laptops with best battery life have survived 13+ hours on a single charge. It’ll outlast school, work, and me (before I have to take a nap).
To be 100% transparent, our tests won’t accurately line up to how you use your laptop. We attempted to get close to real-world usage with our Laptop Mag Battery Test 2.0. It involves continuous Web surfing over Wi-Fi at 150 nits of brightness. That’s not very bright — on average, it’s roughly 50% brightness. If you find yourself wanting more battery, consider dimming the display.
Despite the change in numbers, our tests have been consistent throughout all recent laptops we’ve tested, which means that all of the following truly are the laptops with best battery life.What are the laptops with best battery life in 2024?Why you can trust Laptop Mag Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.

From affordable budget laptops to elite business laptops, there are plenty of all-day-strong notebooks to choose from these days. Even gaming laptops like the Asus ROG Zephyrus G14, which achieved more battery life than the 16-inch MacBook Pro thanks to its AMD Ryzen CPUs, have come a long way in terms of balancing raw power with general mobility. Read on for our top picks!1. MacBook Pro 16-inch (M2 Max, 2023)
The new king of the MacBooks is here. Long be its reign (which should be about a year). Apple’s coming out of the gate swinging, outfitting the laptop with the company’s proprietary M2 Max chip. It puts competitors to shame while putting a clear gulf between its predecessors. And yes, it is possible to game on this system thanks to the chip. I had a hell of a good time being devastated during Resident Evil Village. 

In addition to the powerful chipset, you get a captivating 16-inch display, powerful audio and a super comfy keyboard. But the cherry on the top is the  Apple battery life, which lasted nearly 19 hours. In short, the MacBook Pro 16 is an unmitigated beast. But not so fast — there’s always a price. And in the case of MacBook Pro 16 M2 Max, the price is the actual cost ($2,699 starting, $5,299 as reviewed). It’s par for the course with Apple, but it still will give most people, including this reviewer, pause.  
But if you want the crème de la crème of Macs, the MacBook Pro 16 sits at the top of the heap.

See our full MacBook Pro 16-inch (M2 Max, 2023) review.
2. Apple MacBook Pro (16-inch, M3 Max)How is it that the MacBook Pro 16 gets better every year? It didn’t make any changes to the design outside of a funky, more fingerprint resistant new color, which is a cool trick in itself. The display, keyboard and speakers and hell even the port offering remains the same. But let’s be real, this is really an Apple silicon party and the M3 Max is deserving of all the praise. In terms of overall performance, it has no peers, not even from its fellow MacBooks.

The next chapter in Apple computing and the company’s bet on custom silicon continues to hit the jackpot. M3 Max is more powerful than its ancestor continues with an 16-core CPU. M3 is also bringing a new 40-core GPU, beating out the previous 16-core GPU. And if that isn’t enough to get you excited, Apple has found a way to improve on the laptop’s power efficiency, delivering over 18 hours of Apple  MacBook Pro 16 battery life. Read on to learn more about Apple’s latest home run .
See our full MacBook Pro 16-inch (M3 Max, 2023) review.
BEST MACBOOK PRO 14 (M3, 2023)

3. MacBook Pro 14 (M3, 2023)
It’s amazing what a new heart can do for a laptop. The latest MacBook Air ushers in a new era for Apple with its custom-made M3 chip. This time Apple claim is that its new chip is bringing a generational leap as opposed to an incremental step.
It’s hard to look for flaws in a consistent notebook that’s rated 4.5 stars, especially when not much has changed. Those bold claims Apple made about the M3? They weren’t exaggerations. This MacBook Pro out-muscles every laptop in its class while lasting a full day on a charge. And it does so with a compact 3.4-pound, 12.3 x 8.7 x 0.6-inch design.

The design, while a bit staid, is still beautiful, the display is bright and colorful, even the speakers and keyboard are great. The new MacBook Pro may have a few faults, but it yet again brings Apple closer to crafting the perfect laptop.
4. Lenovo ThinkPad Z16

I’ve been on the hunt for a really good business laptop, and with the ThinkPad Z16 in my hands, I can finally end my search. It’s got a slick, dual-tone design: silver on the outside and dusky on the inside. And to Lenovo loya lists’ delight, the keyboard features the beloved, striking-red TrackPoint that will catch your eye every time you open the lid.
It’s also the perfect size for a business laptop. It’s not too small (like the compact machines on our best 13-inch laptops page), but it’s not ridiculously unwieldy like the 18-inch laptops that are gaining popularity nowadays — it’s juuuust right. 

However, I will admit that the ThinkPad Z16 is a bit heavier than I expected. But to be fair, Lenovo never marketed this laptop as a thin-and-light ultraportable. It’s a business laptop, which means it will likely be sitting on a desk for hours on end before it’s picked up and thrown inside a laptop bag.
The ThinkPad Z16 definitely earned a spot on our best business laptops page, but that doesn’t mean it’s perfect.

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Lithium-ion batteries lose a little capacity every time they are charged and discharged. Generally, the current cycle number of lithium batteries is 1500-2000 times. The picture below is mentioned in a literature. Picture a is the voltage curve at different aging stages , and picture b is the available capacity, also called the health state. 1 means new High quality laptop battery, 0 means completely scrapped. In fact,

the bulk is almost unusable after 80% SOH is used (electric vehicle battery scrapping indicator). Because with aging , the battery capacity decreases and the internal resistance increases. The former results in insufficient available power, and the user experience is that it needs to be charged soon, and it will not last long after charging once. The latter causes the battery to heat up during use.

So can this aging be avoided? the answer is negative. In other words, no matter what brand of mobile phone battery or laptop battery, there is aging and capacity decline. This decline rate is related to usage. This is an empirical formula:

The loss of capacity is related to temperature T and Ah (ampere-hour throughput). The higher the temperature, the faster the aging. The more accumulated charge and discharge of electricity experienced, the greater the aging.
As the battery ages, the internal resistance becomes larger and larger, and it gets hotter and hotter, and the heat accelerates aging, which is a vicious cycle.

Regardless of the form, they are all connected in series (rarely in parallel)

Since they are connected in series, there are inevitably inconsistencies in the  laptop batteries including inconsistencies in internal resistance, open circuit voltage and capacity. When they first leave the factory, they are all screened and the inconsistencies are not obvious. But after a long time of use, there will be a wooden barrel effect.

There is always a shortcoming of a battery that restricts other batteries. For example, if one battery has a low capacity and disappears after being left for a while, then other batteries are useless if they have power. Lithium batteries are not allowed to be over -discharged; if there is a battery with the highest capacity, it will be fully charged after a while. , then other batteries are not fully charged and cannot continue to be charged. Lithium batteries are not allowed to be overcharged. Therefore, the battery pack determines the amount of power that can be used by these two battery cells.

Returning to the topic of laptop batteries, there is a possibility that the inconsistency of the battery pack has reduced the available power. It will be full after charging and empty after a while after discharging. In this case, the available service life of the battery pack is much lower than that of a single  laptop batteries ,battery pack.