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it's a living nightmare you've got critically important stuff to do but

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your laptop is dying and you have no way to charge it so you go into desperation

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mode trying all the wacky battery saving

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tips that you read about online turning the brightness down turning down your

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screen resolution installing a battery

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optimization app that runs in the background what yeah so with all the

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outlandish advice out there we couldn't

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resist quantitatively testing the internet's current most popular battery

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saving techniques to determine once and for all just how much more life down to

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the minute these tricks can get you so get amped because the results May shock

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you G skills km780r RGB mechanical keyboard

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features a brushed aluminum top plate on the Fly macro recording and different

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Cherry MX switch configurations learn more at the link

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below let's start with the worst case

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scenario using PC Mark's home conventional battery life test we

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managed to get am measly 2 hours and 38

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minutes of battery out of the 2017 HP Spectre X 360 that we Ed for the bulk of

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our tests a product that boasts up to 15

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hours of battery life on its product page so we achieved this dubious feat by

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connecting a set of high-end peripherals with the screen at full brightness the

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balanced power plan the keyboard backlight enabled the screen at Full

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Resolution bluetooth enabled and Wi-Fi connected all right then so first things

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first how much juice can we save by removing our RGB Mouse and this op

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backlit keyboard that actually uses two USB type A ports holy cow we just

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boosted our battery by 25 to 30% more

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than I actually would have thought and even more interesting with less gangster

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peripherals we are still looking at over 20% shorter battery life than the

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onboard input devices so pulling out

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does work now you know

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what about disabling the USB ports or other devices outright we ran one test

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with the USB ports disabled and another

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with the webcam and IR emitters

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disabled but other than being a good idea for privacy neither of these

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produced any savings above our 4% margin

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of error so it looks like the internet got that one wrong the next one seems

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pretty credible though Samsung even has a setting built into the new Galaxy S8

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to run the screen at a lower resolution to save power so we went from 4K all the

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way down to 800x 600 with results that

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frankly didn't justify the awful user

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experience of that resolution at 6%

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we're only just above our margin of error the results from our keyboard

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backlight test though were so surprising

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that we ran this one three times and it's official turning off the back lit

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keyboard netted us an average of about 16% more juice though your mileage may

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vary high-powered gaming machines with bigger batteries might not see such a

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large impact but what about the

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brightness of the screen turning your

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brightness down from Max to 50% saved us

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the exact same amount as turning off the

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keyboard backlight outright but this is where it gets crazy

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turning brightness all the way down to minimum from there doesn't double these

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savings we only got an additional

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4% but how can that be well it turns out

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that your eyes don't perceive brightness linearly so it takes a lot more power to

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brighten your screen from 50% to Max

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than it does from minimum to 50% the

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more you know and here's another twist

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pretty much everyone agrees that disabling Wi-Fi and Bluetooth with

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airplane mode will boost battery life

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but nope we tested this one three times

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as well then we thought maybe this

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airplane mode thing sucks let's turn off both Wi-Fi and Bluetooth manually still

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nope so it turns out that modern Wireless chipsets don't suck much power

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when they're idle so even though our machine was connected to a network the

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whole time we didn't see much of a difference but you should note that in a

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low signal strength scenario or if it was searching for a network that drain

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would likely be much more noticeable but

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hold on a second lonus I'm always on the internet when I'm using my computer what

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if Wi-Fi isn't idle okay great question

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for that we'll need a new test so we took everything we learned in Phase 1

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and collected a new set of Baseline data

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that we feel is more representative of the real world so our notebook is

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running at 50% brightness and full resolution with our devices enabled our

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peripherals disconnected and our keyboard backlight on then we added a

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more real world load YouTube videos so

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compared to just sitting there staring staring at the desktop with nothing

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running streaming a brain splattering

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240p video reduced battery life by

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29% but you guys don't watch potato

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content you stream in 4k so that's going to cost you about

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another 8 to 10% more battery life and

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that's just to see the video listening to it has a price too compared to having

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the machine muted maxing out the speakers cost us an additional 12 to 14%

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battery all right then but what about all that crap that you yes you have

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running in the background well we opened

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up a bunch of apps and extra browser tabs to see how the system holds up and

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compared to our Baseline these

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relatively common background tasks

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actually cut our battery life in half

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although it should be noted that you can mitigate some of this with an alternate

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power plan so we tested Windows's

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recommended balanced mode against power

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saver with and without background tasks

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with very impressive results power saver

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interacts with your machine's Hardware capping your CPU's performance or

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prioritizing passive cooling before active cooling then we tried battery

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saver this feature interacts with software limiting the activity of

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background apps stopping live tile updates and blocking push

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notifications battery saver only affects universal Windows platform apps so

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applications from the Windows store but it just happens that Skype slack and

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Spotify are all WP apps hence the

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significant boost in our results so then if you find yourself in

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a battery life for death situation you

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can count on our tips in order of importance to achieve as much as triple

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the endurance while keeping your system in what we would still consider to be a

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very usable State step one exit as many

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background programs as your type A personality will allow step two turn on

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battery saver and if you're not doing something intensive like gaming throw on

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power saver too note that by default these actions may also dim your screen

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but you can adjust that after step three Nick the extra keyboard and mouse

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productivity Is for Suckers anyway step four dim your screen to a reasonable

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level and don't use your keyboard backlight during the day step five turn

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down your volume or use headphones instead of speakers you're probably just

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annoying people anyway damn kids step

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six if you're streaming video dial back

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the quality a little bit and step seven are you guys still here if you want to

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go ahead and set set a '90s resolution for 6% savings then power to you I guess

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a final electrifying tip something that we couldn't test for what I hope are

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fairly obvious reasons put your machine in narcolepsy mode so that it doesn't

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waste any precious energy when it's not in use then once you've done all those

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things you should have achieved true

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battery life Zen

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