I meant the efficiency of the electrical transfer of energy to the EV
battery, not necessarily total system efficiency. In general, higher
charge rates means more heat, more line losses, etc. Just look at the
efficiency specs vs charge rate for any battery; its basic physics. The
lead acid
The good LFP batteries all tell you max charge/discharge rate and that
in their specifications. Cascading of batteries usually widens these rates.
Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridso...@sti.net
[2]
text 209 813
I think what he means is that the battery lifespan will improve with slower
charging.
On that note, I have not seen much concrete information on how high charge
rates affect all of these newer lithium batteries. They all claim outwardly
that their battery can be charged fast, because let's face
>Lower charge rates are more efficient both for the car's battery and the
solar/ battery system
I don't get that. Our house battery is full at about 11 a.m., so we have
about four hours to charge the car. During that time we make about 6KW, so
the car uses 5KW of that and charges up. If I went to
Also have a customer with a Leaf that can charge from a dual GVFX
system. He uses the 120 vac charger. Lower charge rates are more
efficient both for the car's battery and the solar/ battery system, so I
recommend sticking to the 120 vac chargers if possible.
Ray Walters
Remote Solar
303
I had a Nissan Leaf and a 240v charger, we had no problem using our Radian
to charge it during the day.
On Sat, Jun 6, 2020, 22:11 Hilton Dier III wrote:
> The issue with EV chargers is that they create a lot of reactive power.
> Think of it as "slosh" in the waveform. That means that charging
The old SW waveform changes with battery voltage. On the 24 volt version
there are less steps when the battery is over 28 volts. My washing machine
motor does not run when the battery is over 28. I just have to turn on the
microwave when I want to do laundry on a sunny day.
David
On Sun, Jun 7,
I was trying to charge a Nissan Leaf with a ? Iam not sure but two VFX i
think old age.. i mostly rember having the problem. I think the car
harger had a max of 2kw
On Sun, Jun 7, 2020, 3:41 PM Jay wrote:
> I’ve got offgrid 2 clients and they have no issues.
>
> They each have a Bolt and can
I’ve got offgrid 2 clients and they have no issues.
They each have a Bolt and can choose the charging rate. They can run it at
either power. But only use higher power when they have lots of sun.
Older Stacked vfx and Schneider xw, no issues.
I would expect the SW to work, however it’s an
I think you said it well, about 5 years ago I tried to charge a car from an
off-grid system. I did not record my events but the inverter had twice the
power of the level two charger, yet the inverter would get hot and trip
out. I was told a ferroresonant transformer may help, and it might be
The issue with EV chargers is that they create a lot of reactive power.
Think of it as "slosh" in the waveform. That means that charging at
2,000 watts sloshes a lot more than 2kW through the cable, plug, outlet,
and from the inverter. If you've got a reasonably good sinewave inverter
the
11 matches
Mail list logo
