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Unread 09-13-2018, 11:03 AM   #51
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Default Re: Bit the bullet Leaf Lithium build

My gigavac relay direct from gigavac was $95 us dollars, shipped.

I was able to get the relay and the disconnect switch for $144, shipped.

HBD41AB - Disconnect
GV241FAX - Relay

You might want to see if Ian can modify the order and just by direct. But you might also check on lead time, it looks like gigavac won't be shipping mine until 10/1. If you need it sooner, Ian might be a better choice.

On the batteries, if those are gen 1 leaf cells, then you are supposed to have module spacers between each one due to the shape of the aluminum housing. (2011 & 2012 modules)



If your pack does not have spacers, I would use fender washers or similar to ensure the force from bolting them together is carried through the mounting area near the all-thread, and not crushing the perimeter of the module case.
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Unread 09-13-2018, 11:18 AM   #52
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Default Re: Bit the bullet Leaf Lithium build

Quote:
Originally Posted by cmcnice View Post
I would order the TC charger directly from Elcon in California. It will be $100 more all told but it take less than a week and you get fast English tech support. Any Chinese supplier has to order it themselves from TC in China with the settings you provide which adds an extra two weeks. Elcon owns the factories in China with TC and is the US distributor. Also, there’s a long saga about this charger model I went through in another thread — mine was initially programmed for “Enable control” which you don’t want. In theory it can work as well that way but I had issues and it can’t be changed without sending it back. Make sure they program for “CAN control” so the Zeva BMS can control it.
I would tend to agree with those comments, except for the Elcon TC Charger website 1.) does not exude the feeling of we are the originals and own this design, 2.) does not even have the current manuals posted, and 3.) does not have a way for you to buy on-line. (These days, even the smallest of vendors can easily have a web store.)

Also, they are most probably getting the charger from the exact same place as the alibaba supplier, so you can't use the buy USA, not China argument.

Plus, when I bought from Deligreen they clearly indicated they would take my specifications (input voltage, output voltage, CAN control, etc...) and have one custom made to those specs. If Elcon has them on the shelf, I can't see them fixing the voltage input error by programming 110V as the low voltage alarm state. I have hope that Deligreen will. As for CAN vs Enable, Deligreen went as far as sending me a copy of their CAN protocol that I then forwarded to Ian to confirm it would work with ZEVA's BMS. Ian confirmed it was compatible and would work.

So, as long as Deligreen does what they said they would do, it should work.

As for timing, and extra 2 weeks won't hurt me since ZEVA is running a 2+ week lead time on the BMS. No need for a charger if I don't have the BMS. Deligreen quoted 7-14 days for production, then shipping. I am guessing 3 weeks overall for when it will arrive.

I will admit that buying from Deligreen was convoluted and the most difficult part of the process so far. Alibaba is much harder to buy from than Aliexpress. I think this is because Alibaba is geared towards selling many units to middlemen, and Aliexpress is geared to selling single units to consumers.
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Unread 09-13-2018, 11:28 AM   #53
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Default Re: Bit the bullet Leaf Lithium build

EDIT: Never mind. I missed you posted the model number. Doh!

Which disconnect will you use?
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Unread 09-13-2018, 11:35 AM   #54
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Default Re: Bit the bullet Leaf Lithium build

Quote:
Originally Posted by ag4ever View Post
My gigavac relay direct from gigavac was $95 us dollars, shipped.

I was able to get the relay and the disconnect switch for $144, shipped.

HBD41AB - Disconnect
GV241FAX - Relay

You might want to see if Ian can modify the order and just by direct. But you might also check on lead time, it looks like gigavac won't be shipping mine until 10/1. If you need it sooner, Ian might be a better choice.

On the batteries, if those are gen 1 leaf cells, then you are supposed to have module spacers between each one due to the shape of the aluminum housing. (2011 & 2012 modules)



If your pack does not have spacers, I would use fender washers or similar to ensure the force from bolting them together is carried through the mounting area near the all-thread, and not crushing the perimeter of the module case.
My pack does in fact have the spacers. I don't like to spend more than I have to, but I also understand the plight of the small guy. I've paid for my order via PayPal and I don't want to now go back and undo what I've done. Yeah....I know it's more......
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Unread 09-13-2018, 11:47 AM   #55
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Default Re: Bit the bullet Leaf Lithium build

Quote:
Originally Posted by yurtle View Post
EDIT: Never mind. I missed you posted the model number. Doh!

Which disconnect will you use?
I believe your referring to the LV disconnect. Well, when I ask Ian about disconnects here was his response:

You might not need to add any LV power relay, since the EZ-GO will already have some kind of contactor that engages when you turn the key on. The wire going to the contactor coil can simply be routed through the "LV Relay" terminals on the BMS, so that if a cell goes too low the BMS can interrupt the supply to the contactor to stop the vehicle.

Remember.....I'm a "wide eye novice." so speak to me in language a 3rd grader can understand.

Dave
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Unread 09-13-2018, 11:52 AM   #56
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Default Re: Bit the bullet Leaf Lithium build

ag4ever mentioned this:

HBD41AB - Disconnect
GV241FAX - Relay
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Unread 09-13-2018, 12:44 PM   #57
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Default Re: Bit the bullet Leaf Lithium build

Quote:
Originally Posted by yurtle View Post
ag4ever mentioned this:

HBD41AB - Disconnect
GV241FAX - Relay
Yes. I know. But remember I said to speak at me like I’m a 3rd grader? I’m not quite sure why I need the HBD41AB disconnect ?
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Unread 09-13-2018, 01:10 PM   #58
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Default Re: Bit the bullet Leaf Lithium build

For the LV and HV cutoff, I would use these type of relays:
http://www.mouser.com/access/?pn=T9AP1D52-48-01

For the HV relay:
Run the charger positive output to one side of the relay coil and to the relay COM terminal.
Connect the other side of the relay coil to the Zeva HV terminal.
Connect the relay NO terminal to the current shunt before the battery.

For the LV relay:
Disconnect the wire(s) from the "cold" side of the key switch.
Run a new wire from the "cold side" of the key switch to one side of the relay coil and to the relay COM terminal.
Connect the other side of the relay coil to the Zeva LV terminal.
Run a new wire from relay NO terminal to the wire(s) that were originally connected to the Key switch "cold" side.
Connect the two open terminals from the Zeva LV and HV to the pack negative.

If You are installing on a Sepex with Regen cart, only use the relay for the key switch interrupt and run the other LV terminal to the Zeva HV terminal. The other HV terminal goes to pack negative.

That will allow the Zeva to disable the cart on a high cell voltage condition (Regen) as well.
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Unread 09-13-2018, 01:12 PM   #59
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Default Re: Bit the bullet Leaf Lithium build

I haven't a clue. I'm stuck with eight 2009 T-105s. I just like to make mental notes for stuff I might could use, when I "bite the bullet".
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Unread 09-13-2018, 01:13 PM   #60
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Default Re: Bit the bullet Leaf Lithium build

BTW, I've been in contact with the seller of my batts, AZlithium on eBay. He was really great about sending me a new module. He stated the one he is sending me is from the same pack.

I don't think this module has been damaged internally. So, he (AZLithium) said he would send me a prepaid return sticker, or I could keep this one for $20. I'm quite certain it was UPS who dropped it off a 8 story building.

Anyway......tell me more about the HBD41AB disconnect!!
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