Max battery life laptop 2019?

[Kagaratsch]

Disregarding any other specification like size, performance and price, what would be the laptop with maximum battery life for web-browsing (video playback) in 2019?

 

In a second step what would be the max battery-life-per-price-ratio laptop?

[RoseLuck462]

Around 6-9 hours 

[Kagaratsch]

1 minute ago, RoseLuck462 said:

Around 6-9 hours 

Oh, but what about "netbook" laptops? I thought these could get up to 20 hours battery life even a few years ago?

[Silentprototipe]

Its depends massively. I mean you can technically run a celeron and lower its TDP to something like 1w and run it like that. Hell my old laptop could get 12 hours out of its weedy 38 Wh battery. My R5 2500U does around 6-8 at 5W 

[Kagaratsch]

Don't see any netbooks on amazon, where does one get them these days?

Hmm.. or maybe all of them transitioned to chrome os or android, which makes them effectively tablets...

[mariushm]

Laptops will be pretty much limited to 99 Wh , because 100Wh is the limit when it comes to carrying a laptop on airplanes

 

Figure out the Wh of the battery, figure out the average power consumption of the laptop and divide the kWh by the watts and you get your hours.

 

Ex a 30Wh battery on a laptop that will average around 6w while you're watching a movie, will last 30 / 6 = 5 hours.

 

You  have software on the laptop which can give you an estimation on how much power it consumes (battery monitor, hw info software etc) or you can derive it from processor TDP, then add a few watts for lcd screen backlight, chipset, ram and video card (if not integrated)

Or you can power your laptop from a DC adapter and use a kill-a-watt type device to measure the power consumption of a laptop similar to the specs of the laptop you're interested in.

 

 

[genexis_x]

1 hour ago, Kagaratsch said:

what would be the laptop with maximum battery life for web-browsing (video playback) in 2019?

Thinkpad T480/T580/P52s with upgraded battery

 

Alternatively, XPS 13 FHD or Spectre x360 13 FHD

[mariushm]

27 minutes ago, Mr. horse said:

umm. I seen and worked with a lot, and I mean a lot of laptops with more then 100wh. My gd8200 is about 136wh.

Also inset 100wh the limit for cargo and not carry on? I thought is was 160wh for carry on.

I honestly don't know. I would imagine it's 100 Wh.

This article doesn't mention 160 Wh : https://medium.com/solvaygroup/flying-with-lithium-batteries-7a2aa6ef7319

 

[Zando_]

2 hours ago, RoseLuck462 said:

Around 6-9 hours 

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