Study: Most manufacturers overstate how long laptop batteries will last

battery life lie batterylifeclaims
http://www.which.co.uk/news/2017/03/which-laptop-battery-tests-manufacturers-overstate/#?intcmp=HP.hero.large.2.wcutechnews.laptopbatteryclaims.mar31
A new study has found that the battery life estimates made by manufacturers of laptops rarely have much bearing on reality. Although Apple’s battery life claims were the closest to reality, in the case of some other manufacturers, their laptops lasted hours less than the stated time.

Battery life is one of the most important considerations when it comes to buying a laptop. Can it last long enough for you to do what you want and not need to be constantly tethered to an electric socket? The claimed battery lives of many commercial laptops certainly suggest they can, but according to Which? Magazine’s study (via Hexus), the reality is often far different.

In its testing, Which looked at the battery life claims of 67 different laptop models from manufacturers as diverse as Asus, Apple, Acer, HP, Dell, Lenovo, and Toshiba — some of the world’s most popular laptop makers. It found that while Apple’s average claim of 10 hours was proven correct — and was even slightly better in some cases — Dell’s claims were overstated by more than four hours, and HP, close to five.

The times listed in the header image are the average claimed battery life for all of the laptops Which? has tested over the past year versus the times it recorded in its internal testing. That involved charging the laptops to full, then running them down to nothing three times, using online web browsing via Wi-Fi or watching local videos to do so.

Out of all laptops tested, the only manufacturer to understate battery claims was Apple. In one case, it claimed that its MacBook Pro 13 could achieve 10 hours of usage, while tests suggested it could go for as long as 12 hours.

At the other end of the spectrum though, there were some really egregious overstatements. The Lenovo Yoga 510 has a claimed battery life of five hours — it only lasted two hours and seven minutes. The HP Pavilion 14-al115na is supposed to be able to run for nine hours, but was only capable of four hours and 25 minutes. The Acer E15 claimed six hours but ran for just under three hours.

While it seems unlikely that manufacturers would outright lie as part of specifications — that opens up the potential for legal action — it may be that their battery life claims involved ideal scenarios, with an idling laptop with the screen in standby or similar. Some manufacturers did offer comment on Which’s findings, with HP suggesting the discrepancies could be put down a difference in screen resolution.

Dell suggested that battery life was a nebulous concept that was hard to quantify. “It’s difficult to give a specific battery life expectation that will directly correlate to all customer usage behaviors because every individual uses their PC differently,” Dell said in a statement.

Features

Exclusive: The Surface Hub 2S will revolutionize work. Here’s how it was made

Exclusive interviews with the designers, futurists, and visionaries behind the Surface Hub 2 paint a dramatic picture of how Microsoft thinks collaboration will change your office.
Cars

Sick of civilization? Volkswagen’s Atlas Basecamp concept lets you get away

Volkswagen revealed the Atlas Basecamp concept ahead of its debut at the 2019 New York Auto Show. Built for overlanding, this family-hauler was upgraded jointly by Volkswagen and aftermarket manufacturers.
Cars

2020 Acura TLX PMC Edition is an ordinary sedan built in a supercar factory

What's so special about the 2020 Acura TLX PMC Edition? It's built at the Acura Performance Manufacturing Center, the Ohio factory that makes the NSX supercar. The TLX PMC Edition debuts at the 2019 New York Auto Show.
Mobile

The OnePlus 3 & 3T both receive an open beta for Android Pie

Android 9.0 Pie has been released. But is your phone getting Android 9.0 Pie, and if so, when? We've done the hard work and asked every device manufacturer to see when their devices would be getting the update.
Mobile

Intel gives up on 5G modems for smartphones, will focus on other devices

After a delay that saw Intel's manufacture of 5G modems pushed back to 2020, Intel has given up on the 5G modem business, and will focus its efforts elsewhere. But is something else to blame?
Product Review

You won't buy Microsoft's Surface Hub 2S, but it could still change your life

The Microsoft Surface Hub 2S wants to change the way you collaborate at work. That’s a lofty goal most devices fail to achieve, but the unique Hub 2S could be an exception. And trust us – you’re going to want it.
Emerging Tech

How emotion-tracking A.I. will change computing as we know it

Affectiva is just one of the startups working to create emotion-tracking A.I. that can work out how you're feeling. Here's why this could change the face of computing as we know it.
Computing

Meet the mastermind behind Microsoft's massive new Surface Hub

Microsoft Chief Product Officer Panos Panay gives us an exclusive peek at the 85-inch Surface Hub 2, and explains how innovation and collaboration will transform your workplace.
Computing

Microsoft reveals details of Surface Hub 2S, coming in June at $9,000

The Surface Hub 2 could be the most expensive whiteboard ever made, but it should be a powerful and capable one. With the ability to connect several of the 50-inch displays together, the picture at least, should be gorgeous.
Computing

Report says 20% of all 2018 web traffic came from bad bots

Distil Networks published its annual Bad Bot Report this week and announced that 20% of all web traffic in 2018 came from bad bots. The report had other similarly surprising findings regarding the state of bots as well.
Gaming

Learn to uninstall a Steam game and clear some space on your PC

Looking to learn how to uninstall Steam games? You've come to the right place. In this guide, we walk you through the process step by step, whether you want Steam to do it for you or handle the process manually.
Deals

Amazon strikes $100 off the price of Microsoft Surface Go tablets

If you've been eyeing Microsoft's Surface Go for its compact size and portability, now may be a great time to buy the tablet. Amazon has a $100 discount on the Surface Go, bringing the price of this slate down to just under $400.
Photography

Sweet 16: Wacom’s Cintiq 16 pen display makes retouching photos a breeze

Wacom’s Cintiq pen displays are usually reserved for the pros (or wealthy enthusiasts), but the new Cintiq 16 brings screen and stylus editing to an approachable price. Does it cut too much to get there?
Computing

Mueller report releases on CD, forces Congress to find PCs with disc drives

The Mueller report was released this week to Congress via CDs and congressional members had to find PCs with working disc drives to access the 400-page document. The redacted report was also released to the public on a website.