On 6/2/2021 10:56 AM, Joerg wrote:
On 6/2/21 8:25 AM, Tom Kunich wrote:
On Tuesday, June 1, 2021 at 4:02:12 PM UTC-7, Joerg wrote:
On 6/1/21 3:53 PM, Tom Kunich wrote:
On Tuesday, June 1, 2021 at 11:50:01 AM UTC-7, Joerg wrote:
On 6/1/21 11:18 AM, pH wrote:
[...]
The game changer, of course, is the Li ion technology
since if was so easy
for uninformed users to kill off their lead acid
battery pack.

Li-Ion also has its issues. For example, even top brand
manufacturers do
not seem to understand that it is not a good idea to
top off a Li-Ion
battery at close to 100% charge and then leave the bike
in the garage
that way. This results in premature aging and loss of
capacity. The
smarter way is to offer 80% or so which is plenty for a
short ride into
town. Then let users top it off in the morning when
they expect to go on
a very long ride. In the same way, don't ride it all
the way down to
where the low-batt cutoff turns it off, at least not
often.
NiMH would be more robust, but that chemistry never
seemed to catch on
before Lithium came on the scene.

[...]
Actually, L-ion doesn't like 100% charge under any
circumstances.
It's ok if you use it right away. There is always a toll
to be paid but
then it's small. Thing is, most people do not know.
Sadly, many
engineers don't seem to know either and then they design
stuff that
ruins batteries over time by charging them 100% every
single time, and
people buy it.
New batteries are on the way. I'm wondering if they will
be able to make
super-capacitors work. I read a short paragraph by a man
who was a
graphene expert who seemed to think that super capacitors
were already
on the horizon.

They say that for a couple of decades now :-)
--
Regards, Joerg

http://www.analogconsultants.com/
Yes, they have and each year they've gotten closer. Being
able to charge in minutes and not have any components that
chemically degrade is so attractive that I'm fairly
certain that this will be the answer.


Afraid we won't live long enough to enjoy that. The other
issue is that then all the electric vehicle commuters will
want to recharge in 10mins after they got home around 6pm so
they can drive to a nice restaurant with their spouses.
Suddenly a bazillion kilowatts is demanded from the power
grid and ... po0f :-)


So I guess it's inherent and structural that we can't really
judge electric vehicle owners and their anger management
failures

https://nypost.com/2021/06/01/e-bike...ould-kill-you/

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971