oregonsparky
Posts: 92
Joined: Sat May 16, 2015 2:41 pm
Location: Portland, Oregon, USA

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 18, 2015 3:19 pm

SparkMoore wrote:Great question. I'd also like to hear the answer. In the absence of an available DC Quick Charging station, cutting the AC charging time in half makes the car a whole lot more practical. If you drive somewhere near the limit of your range, hanging out some place for three hours is a whole lot more manageable than six to seven hours.
This is one reason to consider an e-golf with a 7.2 KW charger. But then you get into the air cooled versus liquid cooled battery pack discussion, etc... I prefer liquid cooled versus limiting power and air cooled (like the vw).

On the flip side - if you charge it up more slowly - you will invariably get more life from the battery.

jeff
Last edited by oregonsparky on Mon May 18, 2015 3:25 pm, edited 1 time in total.
2015 Spark EV 2LT w/ fast charge (returned after lease end)

oregonsparky
Posts: 92
Joined: Sat May 16, 2015 2:41 pm
Location: Portland, Oregon, USA

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 18, 2015 3:22 pm

nozferatu wrote:Regen proves to me that charging the battery can definitely be done at far greater rates than what the plugged in charging rate is...so I'm sure it's limited by other factors besides charging capacity.
The size of the wires and the connectors from the charger to the battery might be a limiting factor. The regen is using the connections from the motor to the battery.... So your argument, I think, might have a big hole in it....

jeff
2015 Spark EV 2LT w/ fast charge (returned after lease end)

NORTON
Posts: 1310
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 18, 2015 4:10 pm

oregonsparky wrote:
SparkMoore wrote:... I prefer liquid cooled versus limiting power and air cooled (like the vw).
On the flip side - if you charge it up more slowly - you will invariably get more life from the battery.
jeff
Yep, charging slowly is always less work for the battery. And liquid cooling (and heating !) of the battery pack is always better for the pack than blowing air over it.
DC Fast charging is big work for the battery. I forget the C rate, but it is within typical industry ranges.

I feel sorry for the Leaf owner that paid extra for the DC Fast charge option.
With that little fan blowing (?) cabin or outside air around the battery cells, the Leaf is limited to ONE DC Fast charge per day.

I had an extreme of regen in my Volt once.
I descended Pikes Peak starting with only 1 mile of range indicated. (I wanted to run the battery out and see what a 84 HP Volt felt like at altitude. Even less due to the altitude.) EV's don't lose power with altitude!
It got ~75% charge in about 25 minutes. At the Park Ranger safety stop where they read your front brake temp. I was at 75° on a 65° day. I rode the brake pedal all the way like a dumb tourist.
Hopefully due to liquid cooled battery Thermal Management System the battery did not suffer.
And the moral of this long story is Volts and Spark EVs may go a long time before ever needing brake pads !!

I may be one of the Spark EV owners that use DC Fast charging a lot (daily?). It's free in my town!! Is anyone on this forum using DC Fast charging a lot in their Spark EV?
Used '14 2LT w/ DCFC. +83k miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 1st try car died again, 2nd try not covered / cost $800. 3rd try fixed the problem.

Jedi2155
Posts: 62
Joined: Wed Apr 29, 2015 1:05 am
Location: SoCal

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 18, 2015 5:31 pm

I wouldn't be too worried about your Volt battery regen, although that is an unusual case you were merely charging it at close to 1 C rates. Your example was 70% (assuming 100% = 10 kWh) which was only 7 kWh and 7 kWh / 16 kWh means that you only added 43% of real charge in that 25 minutes. I've discharged my Volt battery going up hill at 100 MPH in around 17 miles and ~20 min. It was only a single test but it was fun as heck and it was a lease :lol:

I've seen my Spark regen as high as 59 kW recently. Not sure if there is a difference in regen limits between the 2014 and 2015 Spark EV's though.
Tesla Model 3 Performance (9/28) | Blue | White Seats | 20" | Full Self Driving
2014 Spark EV 2LT - Summit White - Sold as of 8/11/18
http://www.voltstats.net/SparkEV/Stats/Details/6330
My previous 2012 Volt
http://www.voltstats.net/Stats/Details/578

Chaconzies
Posts: 164
Joined: Fri May 09, 2014 6:22 pm

Re: Can you add a second 3.3KW charger to the Spark EV?

Wed May 20, 2015 1:35 am

NORTON wrote:
I may be one of the Spark EV owners that use DC Fast charging a lot (daily?). It's free in my town!! Is anyone on this forum using DC Fast charging a lot in their Spark EV?
I've been using it a lot more recently. There's one in Cerritos that is free and accessible so I'll use that one if I want a quick charge when I'm low. Probably used it 3 or 4 times in the last 2 months.

sTeeve
Posts: 167
Joined: Thu Jan 22, 2015 1:02 pm
Location: Decatur, Georgia, USA

Re: Can you add a second 3.3KW charger to the Spark EV?

Wed May 20, 2015 6:58 am

[/quote]With that little fan blowing (?) cabin or outside air around the battery cells, the Leaf is limited to ONE DC Fast charge per day.[/quote]

Didn't Nissan lift that "limit to one DC Fast charge per day" rule not long ago?

However, it only needs a slight modification to be more applicable. I've taken my 2013 Leaf SL on a few road trips, and on the most recent one (Aug 2015), from Decatur, Ga. to Cape Girardeau, Mo., the Leaf's thermal protection system kicked in after the 4th DC fast charge of the day. Ambient temps were in the low 90s ℉. I called Nissan of Murfreesboro whilst on the road and the service advisor said "bring 'er in and we'll hook it up to our computer". Spent one hour waiting, and nothing was wrong. Service advisor said "just let it cool when you get a chance; otherwise, continue on your way".

I chronicled my trip here: https://www.facebook.com/media/set/?set ... afd217ec4e

It was a fun trip, and I'd do it again...if Nissan would give their cars a "proper battery thermal management system like the Spark EV".
2014 Spark EV

TonyWilliams
Posts: 572
Joined: Sun Apr 14, 2013 4:23 pm

Re: Can you add a second 3.3KW charger to the Spark EV?

Thu May 21, 2015 1:07 am

The LEAF has no cooling system whatsoever for the battery... not even a fan.

Also, there's no limit to DC charging, but the battery will get hotter with each charge. I did 10 charge events in 65-70F ambient temperatures, and the battery got up to about 110-120F.
Contrary to many folks here, I do NOT own a LEAF.

sphinx
Posts: 11
Joined: Tue Aug 09, 2016 2:32 pm

Re: Can you add a second 3.3KW charger to the Spark EV?

Fri Dec 14, 2018 3:51 pm

Sorry to bring up this old thread, but has there been any experimentation with this? Either another 3.3 or the bolt's ought to plug up -

pdxmotorhead
Posts: 1
Joined: Mon May 04, 2020 3:55 pm

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 04, 2020 4:04 pm

Old,, but who knows if someone gets motivated.. :) I would think the more likely option would be to rebuild the stock charger with heavier parts, use a programmable controller out to the car so it thinks its charging as designed? But actually charging at a higher rate.. Or It would not surprise me if you could stretch the stock charger with some reprogramming.

NORTON
Posts: 1310
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Can you add a second 3.3KW charger to the Spark EV?

Mon May 04, 2020 6:55 pm

pdxmotorhead wrote:
Mon May 04, 2020 4:04 pm
.. would not surprise me if you could stretch the stock charger with some reprogramming.
Yep, beating that ol' horse again.
What about the wires, relays, liquid cooling system related to the stock On Board Charger?

Save your time and money and use the Spark EV the way it is.
It actually DCFC's with the best of them that are made for 50kW DCFC.

And save your pennies for a bigger, better BEV someday.
Used '14 2LT w/ DCFC. +83k miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 1st try car died again, 2nd try not covered / cost $800. 3rd try fixed the problem.

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