KillaWhat
Posts: 866
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Location: Southeast Pennsylvania

Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Fri Dec 06, 2013 7:13 pm

I can see your thinking with this, but I don't think it's a good idea.
The Leaf is looking at a balanced 12 VDC system.

It's looking at the load on it's 12V Battery, and responding to that.
Adding an additional parallel battery load, with then another additional parallel load.... just another potential problem.
And It's not needed.

The existing battery is sufficient to act as a capacitive buffer.

It's not a bad idea in concept though. I understand.
Maybe better to replace and increase the CCA of the Leafs 12V battery if you still want more raw amps.

I can tell you there is a bit of room for a size increase.
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LeftieBiker
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Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Fri Dec 06, 2013 10:46 pm

I'm not sure what you mean by additional parallel loads - the extra battery would be a serial load, IMO. Still, I was wondering if it would provide more stress rather than less on the car. Going with a bigger accessory battery would be a good idea, but whichever battery is in there, *it* will be seeing more stress from the inverter draw...
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
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PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

KillaWhat
Posts: 866
Joined: Thu Feb 23, 2012 5:15 pm
Delivery Date: 15 Mar 2012
Location: Southeast Pennsylvania

Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Sat Dec 07, 2013 9:08 am

By parallel load I mean that all the Positives will be hooked together, and essentially, all the Negative will be hooked together.

Inverter to OEM battery positive, to Accessory battery Positive, to Inverter positive.
One problem with the "accessory" battery, since we cannot hook it's negative directly to the OEM battery's negative, it will not have the benefit of whatever regulation is taking place at the OEM battery Negative.

Without adding the "Accessory" battery, we have a fairly predictable MAX load when we hook up our Inverter.

By adding the additional Accessory battery load (assuming it sits, and will not always fully charged) we initially significantly increase the potential load on the Leaf.
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LeftieBiker
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Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Tue Dec 31, 2013 7:14 pm

What size breaker is that in the setup that started this topic? I just got a 150A version of it from Ebay. Also some 1/0 cable and ring terminals.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

KillaWhat
Posts: 866
Joined: Thu Feb 23, 2012 5:15 pm
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Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Wed Jan 01, 2014 7:02 pm

LeftieBiker wrote:What size breaker is that in the setup that started this topic? I just got a 150A version of it from Ebay. Also some 1/0 cable and ring terminals.
I had to go and look, it's been a while.
It's a 150 Amp unit.
Wired like this:

Image
Black SL Delivered 3/14/2012
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LeftieBiker
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Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Wed Jan 01, 2014 10:12 pm

Thanks. I almost got a higher rated breaker, but then realized I needed to use it as a limiter to keep the inverter from exceeding the DC/DC converter's capacity.

Now, two more questions: how exactly did you connect to the positive battery terminal, and where did you get the line connector/plug assembly?
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

KillaWhat
Posts: 866
Joined: Thu Feb 23, 2012 5:15 pm
Delivery Date: 15 Mar 2012
Location: Southeast Pennsylvania

Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Thu Jan 02, 2014 6:38 am

LeftieBiker wrote:Thanks. I almost got a higher rated breaker, but then realized I needed to use it as a limiter to keep the inverter from exceeding the DC/DC converter's capacity.

Now, two more questions: how exactly did you connect to the positive battery terminal, and where did you get the line connector/plug assembly?
1) These are the housings, the boots, covers, and even the handle, etc.
I did not find this place until AFTER I did mine.

http://www.powerwerx.com/anderson-power ... using.html" onclick="window.open(this.href);return false;

This place is one-stop shopping.
Please note that the correct color for 12VDC is YELLOW.

2) Here are the loose contacts.
You will need 4, and they are sized by wire gauge.

http://www.powerwerx.com/anderson-power ... ntact.html" onclick="window.open(this.href);return false;

I used a big hydraulic crimper on them.
I have seen others use impact crimpers, and I guess you could "solder" them if you had to.

If you are planning on making an "Extension Cable" to get the unit out of/Away from the vehicle, then order the extras that you will need.

Here is a picture of the Hot connection.
With the breaker tripped, I only have the approx. 3" of hot sticking out.

I dremelled (sp?) a slot in the cover until it closed again.


Image
Black SL Delivered 3/14/2012
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LeftieBiker
Moderator
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Joined: Wed May 22, 2013 3:17 am
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Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Thu Jan 02, 2014 3:00 pm

Thanks for the link. For some reason I hate the idea of having to assemble a connector (I'm used to working with XT60 connectors), but I'll have to overcome that. For the battery terminal connection, did you just use an existing bolt to connect a ring terminal, or did you have to do something like make another hole...? I want to keep modifications of my leased car to the absolute minimum.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

KillaWhat
Posts: 866
Joined: Thu Feb 23, 2012 5:15 pm
Delivery Date: 15 Mar 2012
Location: Southeast Pennsylvania

Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Thu Jan 02, 2014 5:31 pm

LeftieBiker wrote:Thanks for the link. For some reason I hate the idea of having to assemble a connector (I'm used to working with XT60 connectors), but I'll have to overcome that. For the battery terminal connection, did you just use an existing bolt to connect a ring terminal, or did you have to do something like make another hole...? I want to keep modifications of my leased car to the absolute minimum.
Loosened the existing bolt, Put the ring under it, and tightened it back up.
Easy Peasy.
Black SL Delivered 3/14/2012
7.2Kw Charging w/Brusa
Leather Interior
Rosewood Dash
JUKE 17" Wheel Upgrade w/225-45-17 Michelin MXM4 Tires
Horn Upgrade
Infinity 63.9i Speaker Upgrade
WattsLeft Meter System
LED High Beams
Carkit NAV Override

LeftieBiker
Moderator
Posts: 13204
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: Using the Leaf for power in a Blackout: MY "Leaf to Home

Thu Jan 02, 2014 10:06 pm

Sounds great. Thanks.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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