JPL
Posts: 117
Joined: Sun Jul 09, 2017 11:42 pm
Location: Vancouver, BC

Bolt 7.2 kWh onboard charger on Spark EV?

Sun Jul 09, 2017 11:57 pm

Looks like we can buy it directly from GM:

https://www.gmpartsonline.net/oem-parts ... VsZWN0cmlj

That's something than EVERYONE wants to upgrade in our cars.

Edit fixed link June 2018
Last edited by JPL on Wed Jun 13, 2018 2:06 am, edited 1 time in total.

noisette123
Posts: 8
Joined: Mon Nov 30, 2015 9:04 am

Re: Bolt 7.2 kWh onboard charger on Spark EV?

Mon Jul 10, 2017 9:21 am

Not possible on the Spark from what we have seen with the DC Fast Charge port Upgrade. The contacts leading to the battery would not withstand that current... It is sad that they have not oversized these DC bus bars.

NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Bolt 7.2 kWh onboard charger on Spark EV?

Mon Jul 10, 2017 9:58 am

I assume the link is for the Bolt charger.

This will not be a plug and play upgrade.

Besides I'm fine with home 3.3 kW charging. (not kWh).
I'd have to upgrade my home EVSE and the house wiring to it.
If I'm in a hurry to top up I drive 5 miles to a free DCFC !! 8-)
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

SparkevBlogspot
Posts: 499
Joined: Mon May 25, 2015 12:19 pm

Re: Bolt 7.2 kWh onboard charger on Spark EV?

Mon Jul 10, 2017 12:42 pm

7.2 kW at 240V is 30A. But going to the battery would be ~370V, which would be about 20A. Is the bus bar unable to handle even 20A? It's hard to believe since DCFC is close to 125A.

Still, I suspect major surgery would be needed to replace 3.3 kW unit with 7.2 kW unit, not to mention the cost. It might be cheaper to just lease a Bolt.

JPL
Posts: 117
Joined: Sun Jul 09, 2017 11:42 pm
Location: Vancouver, BC

Re: Bolt 7.2 kWh onboard charger on Spark EV?

Wed Jul 12, 2017 5:46 pm

noisette123:

Can you guys do this too?
Last edited by JPL on Thu Jul 13, 2017 9:06 am, edited 1 time in total.
2016 Spark EV w/CCS
Front Speakers: Alpine 4" (SPS410)
Back Speakers: Alpine 5X7" (SPS517) w 3D print adapters

17 " Rims
F: Michelin Pilot Sport A/S3 205/40R17
B: Hankook 205/45R17

2020 Kia E-Soul

2000 Honda Insight MT

NORTON
Posts: 1273
Joined: Fri May 01, 2015 5:52 am
Location: KC,MO

Re: Bolt 7.2 kWh onboard charger on Spark EV?

Thu Jul 13, 2017 4:51 am

SparkevBlogspot wrote:7.2 kW at 240V is 30A. But going to the battery would be ~370V, which would be about 20A. Is the bus bar unable to handle even 20A? It's hard to believe since DCFC is close to 125A.
t might be cheaper to just lease a Bolt.
One is 240V AC going to the onboard charger, then DC from that to the battery. The DC wires from the charger to the battery may need to be upgraded.
The DCFC port send DC direct to the battery through separate B/A wires, I'm sure.

I'd love to see the wiring diagrams and physical layout of the components! ;)
Used '14 2LT w/ DCFC. +76 K miles.
Mostly free charging! Only one LONG visit to the shop....
GM needs Modern Troubleshooting tools for Modern EV's.
3 step Trouble Tree, 2nd guess not covered by warranty and cost $800. 3rd guess fixed the problem.

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