[Arm-netbook] Standardized Battery Pack Sizes?

[Christopher Havel]

Typing on phone, please excuse top post.

Lithium ion cells are somewhat sedate, but cannot release as much current
at once as lithium polymer cells can. Lithium iron phosphate cells are
similarly sedare, but have capacities and discharge abilities more like
those of lithium polymer cells.

Lithium polymer cells are the ones on YouTube that catch fire (or worse) at
slight provocation. They tend to (pick one) melt, catch fire, or explode
during recharge, if the parameters are at all even slightly off.

Most phones also use lithium polymer cells, though - usually a single
flatpack in a case. These flatpacks need room to expand, whether in a case
or "non-removeable" inside the phone. What happened with the infamous
Galaxy Note 7 was that the designers did not pay attention to this
requirement. The batteries tried to expand, couldn't, and shorted out
internally as a result. Boom.

On Sep 27, 2017 9:42 AM, "Alexander Ross" <maillist_arm-netbook at aross.me>
wrote:

> On 27/09/17 10:05, Luke Kenneth Casson Leighton wrote:
> > On Tue, Sep 26, 2017 at 11:56 PM, Alexander Ross
> > <maillist_arm-netbook at aross.me> wrote:
> >
> >> [1] luke, the eoma68 laptop li-ion cell is a non typical right?
> >
> >  that's incorrect.  it's a lithium polymer battery. it's therefore
> > chemically stable.
>
> yea sorry. I know its a polymer plastic pouch style. Apologises for
> using incorrect name at the time. I didn’t say anything about chemically
> stable, of course it is. I thought li-ion was same thing as li-po
> chemically but with plastic in between.
>
> I was referring to the dimensions. which i suspect may happen to be what
> the ebike lipo manufacturer is making? Not questing you decision. Trying
> to learn about and question the status quo of lipo dimensions :)
>
> Apologies for the long thread post btw, guess i could have simplified it
> some what heh.
>
> Thanks again.
>
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