[Arm-netbook] laptop battery lessons...

[Denis 'GNUtoo' Carikli]

On Tue, 6 Dec 2016 19:01:47 +0000
Luke Kenneth Casson Leighton <lkcl at lkcl.net> wrote:

> https://tech.slashdot.org/story/16/12/05/2032203/engineers-explain-why-the-galaxy-note-7-caught-fire#comments
> 
> whoops.  *sigh*.... so i'll be increasing the laptop's height by 1mm.
> argh.  that's a big redesign...
The root of the article is a blog post[1] by a company specialized in
finding and fixing such issues, where they analyzed the issue by
buying and taking apart a Galaxy Note 7.
The article also heavily try to promote the services that this company offers.

The information was then picked by a review magazine that wrote a
journalistic article[2] with that information.

The journalistic article was then picked by slashdot.

It would probably be wiser to ask battery experts before taking any
decision, since:
- That company tried to promote their services.
- They don't point to documentation or information on the margin they
  refer to.
- The battery technology is probably different on the EOMA laptop.
- The casing is probably different too.
- That laptop will probably be used for a time that is way longer than
  the average use time for consumer smartphones.
- The average customers for common smartphones don't mess with them,
  open the device, access the PCB, etc...

What if, for instance:
- You need more space than the 10% figure they mentioned? You probably
  don't want to redesign it twice, and you probably don't want to make
  unsafe laptop either, especially because they will probably be used
  for a very long time by people messing with them.
- You don't need to redesign the laptop because the problem doesn't
  apply it.

References:
-----------
[1]https://www.instrumental.ai/blog/2016/12/1/aggressive-design-caused-samsung-galaxy-note-7-battery-explosions
[2]http://www.digitaltrends.com/mobile/instrumental-galaxy-note-7-teardown-news/