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LakeLeaf
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 1:11 pm

Thanks Gary -

A slower DC charger seems like it would be a good way to get a reasonable charge time. If the cost isn't that high - it might also make for a nice unit for public use too. Being able to charge in 2-3 hours at the Mall would be very attractive - if the charge infrastructure was reasonably priced.

GroundLoop
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 1:25 pm

I'll tell you what -- installing DC fast chargers at all Nissan Dealers is a lot cheaper than upgrading all the Leaf on-board chargers to 6.6kW units.

Ford is milking their "Charges Twice As Fast" advantage on the (unreleased) Focus EV, and I can't blame them.
A wide network of DC chargers could make a nice counterpoint. "Charge 8x as fast as a Focus EV!"

KeiJidosha
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 1:45 pm

GroundLoop wrote:Ford is milking their "Charges Twice As Fast" advantage on the (unreleased) Focus EV, and I can't blame them.
I'ts hard to blame them because they are right. 6.6kW L2 matters.

edatoakrun
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 3:16 pm

KeiJidosha wrote:
GroundLoop wrote:Ford is milking their "Charges Twice As Fast" advantage on the (unreleased) Focus EV, and I can't blame them.
I'ts hard to blame them because they are right. 6.6kW L2 matters.
Does it? Certainly a marketing error by Nissan to let Ford advertise "twice as fast".

But I expect L2 charge speed may be largely irrelevant to many EV owners.

Most of my driving will be within the overnight charge range. If I drive further, then either rate of L2 charging is not very helpful.

For example, if I want to drive 200 miles, total travel time with DC fast charging is under 4 hours, 3 hours of driving, and two or more recharge breaks, totaling about 40-45 minutes.

Does it matter much if you can make the same trip using L2 charging in 8 hours in you Focus, as opposed to 12 hours in your LEAF?

Without DC, I won't be driving a BEV much more than the overnight full charge range, anyway.

Which is one of the reasons I don't find the focus very appealing.
Last edited by edatoakrun on Wed Feb 16, 2011 3:29 pm, edited 1 time in total.
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LEAFer
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 3:20 pm

+1. Agree. 3.3kW charging (when you're out in the boonies on a road trip) .... SUX !
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06Jun2013 Status [28.5 months][34,173 miles][11 bars]
Lost CapacityBar 6/6/13 @34,173 miles while in LEAF Battery Monitor: 83.41%, 71.4F (avg); cool overnight;

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evnow
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 8:09 pm

KeiJidosha wrote:
GroundLoop wrote:Ford is milking their "Charges Twice As Fast" advantage on the (unreleased) Focus EV, and I can't blame them.
I'ts hard to blame them because they are right. 6.6kW L2 matters.
6.6 kw is almost the only thing they have over Leaf 2011 - so obviously they will try to use it. We will see what happens by the time Focus is out and Leaf MY2012 also has 6.6 KW charger and the cold weather package ...
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
Volt : 3/25/2017 to 5/25/2018
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DarkStar
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 11:05 pm

evnow wrote:6.6 kw is almost the only thing they have over Leaf 2011 - so obviously they will try to use it. We will see what happens by the time Focus is out and Leaf MY2012 also has 6.6 KW charger and the cold weather package ...
I just imagine a day where Nissan doubles the size of their battery pack and adds a 6.6 KWh charger and Ford doubles their battery pack too... Nissan gets to announce that it takes the exact same amount of "time" to charge, Ford gets to announce it will take twice as long!

Everybody loves a good conspiracy, but I'm really starting to believe this is what Nissan's plans are! :D
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evnow
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Re: I Want my (fast) DC!

Wed Feb 16, 2011 11:31 pm

DarkStar wrote:Ford doubles their battery pack too...
Not using the current car - they'd have to occupy all of trunk and some of rear seat :lol:
1st Leaf : 2/28/2011 to 5/6/2013
2nd Leaf : 5/4/2013 to 3/21/2017
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walterbays
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Re: I Want my (fast) DC!

Thu Feb 17, 2011 12:14 am

Someday I'd love to be able to throw a switch in the garage and feed my PV output straight into the car's DC port - as opposed to converting the PV output DC to AC with losses, feeding it to the grid with losses, waiting until midnight, bringing power back over the grid with losses, sending it to the car's charger, converting it AC to DC with losses, and finally into the battery.
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Herm
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Re: I Want my (fast) DC!

Thu Feb 17, 2011 6:21 am

walterbays wrote:Someday I'd love to be able to throw a switch in the garage and feed my PV output straight into the car's DC port - as opposed to converting the PV output DC to AC with losses, feeding it to the grid with losses, waiting until midnight, bringing power back over the grid with losses, sending it to the car's charger, converting it AC to DC with losses, and finally into the battery.
You would need a 500VDC DC-DC inverter and L3 port on the car, probably not cheap..

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