Hmmm.....
This is just physics. I worked on chargers and charging software.
Most LiIon charge algorithms usw CC/CV where in the beginning the current is
set to the maximum the battery can handle.
When the maximum voltage is reached the control changes to constant voltage
mode where the current is lowered to maintain the voltage.
You can set a power supply to constant voltage and hook it up to a li Ion
battery and it will behave the same way.
Nothing special except where you set the CV limit too.
On Wednesday, July 22, 2020, 7:32:44 PM CDT, Michael Ross via EV
<ev@lists.evdl.org> wrote:
The positive electrode becomes very reactive at near fully charged and this
damages the electrolyte. As mentioned charging the last bit is a slow
process. So Tesla limits the charging to extend battery life and to make
charging to "100%" faster.
On Wed, Jul 22, 2020, 5:23 PM Peter VanDerWal via EV <ev@lists.evdl.org>
wrote:
> Are you sure about that? Rapid Charging LiIon typically slows down as you
> near full charge.
>
> July 22, 2020 9:41 AM, "Willie via EV" <ev@lists.evdl.org> wrote:
>
> > On 7/22/20 12:21 PM, John Lussmyer via EV wrote:
> >
> >> On Wed Jul 22 08:33:19 PDT 2020 dov...@bellsouth.net said:
> >>> At any rate Tesla doesn't let you use the whole battery anyway even at
> 100% charged it is not
> >>> because they gave people temporary range increases during the Florida
> Hurricane.
> >>
> >> Did they need to do more charging to get that extra range? or if their
> car was already fully
> >> charged, did it just have extra range?
> >> The former means the reduced range is the bottom of the pack, the
> latter means it's the top.
> >
> > I haven't used a car with a software limited battery but, as I
> > understand, the battery is just not allowed to fully charge. One
> > benefit, observed and reported by many, is that SuperCharging goes MUCH
> > faster near the top. With a not limited battery, one rarely has the
> > patience to fully charge at a SuperCharger because it tapers to just a
> > few kw near the top. A second touted benefit of limited batteries is
> > that they have longer life.
> >
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