jclemens
Posts: 168
Joined: Mon Sep 05, 2011 7:37 am
Delivery Date: 02 Nov 2011
Leaf Number: 003748
Location: Mississauga
Contact: Website

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Wed Jun 20, 2012 6:56 pm

So... any word on what happens if you put 100-240VDC into the Leaf's on board charger?

I heard somewhere that there is/could be yet another relay on the AC side that is only rated for AC, and putting DC into it may weld the contacts shut if it needed to shut down suddenly, also putting DC into it may stress half of the bridge rectifier that normally gets a 50% duty cycle with AC.

EVDRIVER wrote:
jclemens wrote:yes, you could do that, but you have to work with dangerously high voltage, it would require expensive electronics, and would probably void your warranty.
We wouldn't have to open or cut anything (except an EVSE that has already been opened) to see if the J1772 port can accept 240VDC.


Yes, that was my point on that note.
Interested in a j1772 dummy inlet to hang your EVSE when not charging?
PM me for details. or see http://erroneus.myevblog.com/buy-plastic-parts-here/

EVDrive
Posts: 509
Joined: Mon Mar 28, 2011 11:21 pm
Delivery Date: 21 Apr 2011
Leaf Number: 776
Location: SF Bay Area, Ca

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Wed Jun 20, 2012 10:13 pm

I'm still interested in adding battery capacity to my leaf. Anyone come up with a viable avenue yet?
- SF Bay Area
- 2011 Leaf traded in at 46,000 miles, 3 years, lost 1 bar
- Upgraded to 2014 Rav4EV with Quickchargepower.com CHAdeMO port, 53,000 miles
- Tesla Model 3 reserved

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Ingineer
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Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Thu Jun 21, 2012 12:54 am

jclemens wrote:So... any word on what happens if you put 100-240VDC into the Leaf's on board charger?
This matters not, as the interlock prevents the Leaf from driving while the OBC (On-Board Charger) is in use.

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/ - - - - Like us on Facebook: EVSE Upgrade

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Ingineer
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Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Thu Jun 21, 2012 12:55 am

EVDrive wrote:I'm still interested in adding battery capacity to my leaf. Anyone come up with a viable avenue yet?
I've proven this can be done safely and reliably, but it's not cheap or easy!

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/ - - - - Like us on Facebook: EVSE Upgrade

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EVDRIVER
Posts: 5788
Joined: Sat Apr 24, 2010 7:51 am

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Thu Jun 21, 2012 6:08 am

All joking aside, you are better buying another EV like a Tesla. This topic has been hashed out so many times here, it takes considerable skill to do this properly and safely, it creates cascading upgrades on the car, and you will spend weeks of full days designing and building this project unless you have done this several times before and you have advanced EV engineering skills. Then you end up with an add on solution that is not optimal. Anyone that thinks this is not that difficult and VERY time consuming to do properly has never built a proper, well-engineered traction pack. All this and a solution for a little more range and a lot of grief. For those that are sure it is a good idea please come back and post when you are finished and please be honest and let us know how many hours it took and the TOTAL cost involved. Don't forget to add in the countless hours of emails to others for help, planning, testing, fiddling, ordering online, repeated trips to supply stores, etc, etc.

jclemens
Posts: 168
Joined: Mon Sep 05, 2011 7:37 am
Delivery Date: 02 Nov 2011
Leaf Number: 003748
Location: Mississauga
Contact: Website

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Sat Jun 23, 2012 2:58 pm

I wasn't thinking of charging while driving, an extra pack would just be for charging while in a parking lot, away from other sources to plug in.
My only question is if DC will damage the onboard charger in anyway (I'm not talking about the EVSE)

Ingineer wrote:
jclemens wrote:So... any word on what happens if you put 100-240VDC into the Leaf's on board charger?
This matters not, as the interlock prevents the Leaf from driving while the OBC (On-Board Charger) is in use.

-Phil
Interested in a j1772 dummy inlet to hang your EVSE when not charging?
PM me for details. or see http://erroneus.myevblog.com/buy-plastic-parts-here/

EVDrive
Posts: 509
Joined: Mon Mar 28, 2011 11:21 pm
Delivery Date: 21 Apr 2011
Leaf Number: 776
Location: SF Bay Area, Ca

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Sat Jun 23, 2012 6:14 pm

Ingineer wrote:
EVDrive wrote:I'm still interested in adding battery capacity to my leaf. Anyone come up with a viable avenue yet?
I've proven this can be done safely and reliably, but it's not cheap or easy!

-Phil



Well it is good to know it can be done. I'll remain patiently awaiting for a company to have a product over the next year, and if nothing comes together in volume, I'll give in and go model s.

Hopefully Nissan will offer more dense cells in the near future so I can use my current ones for PV storage and just buy a whole new pack.
- SF Bay Area
- 2011 Leaf traded in at 46,000 miles, 3 years, lost 1 bar
- Upgraded to 2014 Rav4EV with Quickchargepower.com CHAdeMO port, 53,000 miles
- Tesla Model 3 reserved

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TomT
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Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Sat Jun 23, 2012 8:11 pm

I'm leaning heavily toward ordering an 85Kw myself...

EVDrive wrote:Well it is good to know it can be done. I'll remain patiently awaiting for a company to have a product over the next year, and if nothing comes together in volume, I'll give in and go model s.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2017 Volt Premier. Model 3 reserved.

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hill
Gold Member
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Joined: Wed Apr 21, 2010 4:05 pm
Delivery Date: 27 Mar 2011
Leaf Number: 0659
Location: Lake Forest, CA

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Mon Jun 25, 2012 7:32 am

highcountryrider wrote:Ah, that would work as long as you could convince the LEAF to move while charging. I don't know what that might take.
It's called, "regen" . . . it happens all the time, every day in a Leaf.
;)

chenyj
Gold Member
Posts: 23
Joined: Sun Jul 22, 2012 12:29 pm
Delivery Date: 22 Jul 2012

Re: Extra Battery, How to Integrate with 24kWh Traction Batt

Sun Jul 22, 2012 2:18 pm

EVDrive wrote:Well it is good to know it can be done. I'll remain patiently awaiting for a company to have a product over the next year, and if nothing comes together in volume, I'll give in and go model s.



The Enginer range extenders have been available for years. The 4KWH system and 8KWH system cost $3495 and $5495 respectively. They extend Leaf's range for 20 miles and 40 miles.
2004 Prius with Enginer 8KWH Kit
www.enginer.us

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