Using software to prevent battery problems....

Isn't it silly in the very beginning?

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Mr. Man-wai Chang wrote:

Isn't it silly in the very beginning?


They don't do it that way.

There are chips which implement the entire charging cycle.

http://batteryuniversity.com/learn/a..._ion_batteries

http://batteryuniversity.com/learn/

Personally, I'm going to wait a few months, until
the postmortem results come out. I've seen no information
to date, which makes any indication of a root cause.

Paul

On 10/09/16 22:57, Paul wrote:

Personally, I'm going to wait a few months, until
the postmortem results come out. I've seen no information
to date, which makes any indication of a root cause.

I knew it's impossible to use a chip to prevent abuse. But shouldn't we
make that point clear to consumers?

Should we add "proper handling of rechargeable battery" to primary
schools if not nursery schools textbooks?

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On Sat, 10 Sep 2016 19:10:53 +0800, Mr. Man-wai Chang wrote:
Isn't it silly in the very beginning?

It's practically same as downloading RAM.

On 11/09/16 12:49, JJ wrote:
On Sat, 10 Sep 2016 19:10:53 +0800, Mr. Man-wai Chang wrote:
Isn't it silly in the very beginning?

It's practically same as downloading RAM.


Well, could cast protection magic using computer programs? I doubt it...

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On Sat, 10 Sep 2016 23:16:55 +0800, "Mr. Man-wai Chang"
wrote:

On 10/09/16 22:57, Paul wrote:

Personally, I'm going to wait a few months, until
the postmortem results come out. I've seen no information
to date, which makes any indication of a root cause.

I knew it's impossible to use a chip to prevent abuse. But shouldn't we
make that point clear to consumers?

Should we add "proper handling of rechargeable battery" to primary
schools if not nursery schools textbooks?

AFAIK there is no (presented) evidence that there has been abuse.
OTOH, as an owner of a Galaxy S7, of which there have been no similar
occurances, my suspicion is that there is a manufacturing defect that
is limited to the "Note" batteries. Which brings a question to mind...
does Samsung manufacture their own batteries for the Note 7? I
recently read an article stating that Samsung was building a factory
in Europe to manufacture Lithium batteries for automobiles, BMW
initially. So if there is a manufacturing problem and it's within
Samsung's organization, it's very likely they won't release any more
information than they are forced to.

On Sat, 10 Sep 2016 19:10:53 +0800, "Mr. Man-wai Chang"
wrote:


Isn't it silly in the very beginning?

It can be and has been in the past.

particularly at the very beginning of the sw development....

Who's on first?

RL

On Mon, 12 Sep 2016 13:14:36 -0400, legg wrote:

It can be and has been in the past.

particularly at the very beginning of the sw development....

Who's on first?

Are you telling me you haven't solved the chicken - egg problem, yet?

Mr. Man-wai Chang wrote:

Isn't it silly in the very beginning?


Hey, Battery-Man, you'll be pleased to note
they're truncating the charge cycle to 60%.
This is to enhance safety for those people
too stupid to participate in the recall effort.
(You know, the same people here who drive their
cars forever, on the spare wheel they found in
the trunk of their car. Those people.)

http://www.cbc.ca/news/technology/sa...arge-1.3759648

That means, they'll be avoiding Stage 2 completely.
And checking the fill state (somehow) to determine
when to stop. You cannot use time alone to do
that (like stop at 45 minutes), because if the
battery is at 40%, and the target is to charge
to 60%, they need to use the "fuel gauge" to
tell when to stop.

http://batteryuniversity.com/_img/content/ion1.jpg

I have no idea how they're doing that, whether
the battery management chip is programmable, or
the poor CPU will have to be on for the entire
charging process. And return to the run-state,
if the charger enters Stage 4 and tries to top up
the battery later.

Paul