[ref
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Daimler-s-2008-50M-Smart-fortwo-contract-kept-Tesla-alive-amp-gave-credibility-td4682556.html
]
'2017 Smart ForTwo & ForFour EVs to debut 2016/09 at Paris.fr'
http://insideevs.com/turns-tesla-actually-made-electric-smart-fortw
ly loses
about ... He said that the company had simulated over 500,000 miles on it
and ...
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Batteries for electric buses become an “explosive” issue for S. Korea and
China
Jun.8,2016 Kim Kyung-rok
[image
http://img.hani.co.kr/imgdb/resize/2016/0609/146537388244_20160609.JPG
A bus with an electric battery that expl
Cor van de Water via EV wrote:
For many years, I have used a "take-out" UPS battery
to keep my internet, WiFi and VoIP powered through regular power
outages, always floating it to 13.5V...
I can second Cor's advice. 13.5v is a good float voltage; better than
the usual 13.8v you'll find in most
dovepa via EV wrote:
Isn't that what a trickle charger does? I know lots of people who
leave them on all the time.
People mix up "float" and "trickle" chargers all the time. But they are
quite different devices.
A "trickle" charger delivers a more-or-less constant CURRENT, regardless
of the
Robert Bruninga via EV wrote:
What happens when you might forever overcharge a CAR battery with 30 mA
(during daylight).
Most car batteries are flooded (i.e. not sealed). If you continuously
charge them, once they reach "full" they simply convert the excess
charging current into heat and gass
Lee,
I can see that you did not proof-read your mail,
or you would have caught
- the two zeners are chosen so the sum of the voltages is the desired
output voltage *plus* the drop of the diode at the output. For example
if you want 13.5V output then the two zeners must have combined voltage
of 13.5
Cor van de Water via EV wrote:
Lee, I can see that you did not proof-read your mail,
Thanks, Cor! Egads, I'm typing faster than I'm thinking. Your
corrections are all right on the money. :-)
- the two zeners are chosen so the sum of the voltages is the desired
output voltage *plus* the drop
More background on the single genuine complaint (but 30 entries in NHTSA
database)
http://electrek.co/2016/06/13/tesla-fale-complaints-suspension-nhtsa-kee
f-wivaneff/
Cor van de Water
Chief Scientist
Proxim Wireless
office +1 408 383 7626Skype: cor_van_de_water
XoIP +
one. That's 14 x 10' = 140 feet
> of wire right there -- far more than the parallel case.
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ne to the bottom of the next one. That's 14 x 10' = 140 feet
> of wire right there -- far more than the parallel case.
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> a 30ma (peak) PV panel probably can't overcharge the battery
Yea, I was going to say that.
The internal resistance of the PV cell is likely high enough that it won’t
develop more than 13.5 volts, anyway.
At that level, the battery has to dissipate only 400 milliwatts, which it
should be able
Cor van de Water via EV wrote:
That was also my immediate thought (being an engineer)
so all I can think is that the solar roofing is directional,
like shingles, so you can't flip it around.
They could have made two variants though, one with + at top
and one at bottom, so you just would have to a
Jan Steinman via EV wrote:
At that level, the battery has to dissipate only 400 milliwatts,
which it should be able to do without damage under almost any
circumstance.
You'd be surprised. A good new AGM or gel battery can easily go over
13.8v even with just 5-10ma. It takes a long time to get
d the charge will further taper.
>>
>> All the cells had water over the plates, some higher than others, so I now
>> have them all topped off.
>>
>> I know that long-term sulfation is a problem. But these batteries were
>> close to charged when they were abandoned
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