SMA Sunnyboy storage + Packsniffer2 + full intact Nissan leaf pack

[Picasso]

Thinking for my next build of doing ..2013+Nissan full pack $2000-$4000 pair that with the SMA 5kw $2500 and use a product called packsniffer2 to control the insides of the nissan pack....aka contactor, pre-charge, and read the bms. So that leaves me with just needing to talk with the SMA about pack health. The SMA has 3 inputs for packs so I could expand with 2 more nissan packs. I like the idea of leave everything in the OEM box. Anyone seen any setups like this yet? I know the evtv guy has a tesla full pack controller...

Sunnyboy storage

Sunny Boy Storage 3.8-US / 5.0-US / 6.0-US | SMA America

Discover the flexible Home Energy Solution: The SMA Sunny Boy Storage 3.8-US / 5.0-US / 6.0-US battery inverter! ► Find out more about its benefits!

www.sma-america.com

packsniffer2

Pack Sniffer / Controller Version 2

 

[Picasso]

Well look what just got posted, full Nissan G1 leaf packs. (I dont like the g1 chemistry) https://batteryhookup.com/collectio...complete-battery-module-24kwh-gen-1-2011-2012

Doing more research on this I would need to work out the SMA CAN signal that tells the $3500 disconnect to trigger. This project just got stupid $$$$ because of the SMA provided disconnect that is needed to talk to the SMA Sunnyboy storage.......

 

[bulrush]

Why do those modules run at 403.2 volts?

 

[Picasso]

Can read up on the leaf pack here. https://qnovo.com/inside-the-battery-of-a-nissan-leaf/ Nissan only charges to 4.0 per cell on its packs. 380ish volts

 

[Freddmc]

Just curious nut is it possible to use one of these packs with a 12v sustem?

Thx

Fred

 

[freds]

There's a YouTube channel Beginning from this Morning where they took an entire leaf battery pack and divided it up as a house storage for their bus conversion RV.

 

[Picasso]

My post is about leaving the pack intact and using as is. I have broken up leaf packs before my current SMA is Nissan cells.

 

[Solar Tech]

Having played with a sbs 6kw and byd 11kwh
The communication will be the hard part for sure
But totally doable with time.
One of the wires from the batt to sbs is an enable +12v. Then it has can and ground

You also have to use an energy meter

You can contact sma for the can message list
I think its sun spec.
Look at the installation manual good info.
I would love to do this with a full tesla pack.

 

[Picasso]

evtv.me has the tesla mod 3 pack controller done now. The main thing stopping me from exploring this more is that damn disconnect / transformer. Id be into $6k for an SMA SBS. Other options out soon to just let me plug in car direct for that price.

 

[freds]

There are numerous resources on the CAN bus message formats for the entire leaf pack. Numerous people are using it for gas to RV conversions where they use the entire pack or multiple packs, along with the charger.

Leaf Can bus decoding

 

[Picasso]

See the product above "pack sniffer". This is not about decoding the leafs CAN bus that has been done.

I have never seen anyone use pack intact for the leaf everyone is removing cells for ev conversions.

 

[RayanR]

Having played with a sbs 6kw and byd 11kwh
The communication will be the hard part for sure
But totally doable with time.
One of the wires from the batt to sbs is an enable +12v. Then it has can and ground

You also have to use an energy meter

You can contact sma for the can message list
I think its sun spec.
Look at the installation manual good info.
I would love to do this with a full tesla pack.

were you able to get the can message list for the sma? I contacted SMA 4 weeks ago and haven't recieved an awnser yet, even after sending reminders

 

[Solar Tech]

I never tried to. I have in the past gotten the sunny island can list from headquarters in Germany.

 

[Solar Tech]

I emailed one of my contacts to see if he could get me the list

 

[Solar Tech]

I'm purchasing another full Tesla pack I'd like to try it with a sunny boy storage

 

[Picasso]

Page 28 lists the CAN the SMA wants to see from a pack to work. mostly the same for island/storage https://secondlifestorage.com/index.php?attachments/literminal_docu_en_sm-sma-canbus-pdf.1460/

 

[Solar Tech]

Page 28 lists the CAN the SMA wants to see from a pack to work. mostly the same for island/storage https://secondlifestorage.com/index.php?attachments/literminal_docu_en_sm-sma-canbus-pdf.1460/

That is for the sunny island although it could still be the same can messages

 

[Grinder]

Hi there!

I'm also pretty much interested in getting in touch with the Canbus protocol for the Sunnyboy Storage. I've tried to get him working with a KIA battery but no clue why it get hooked.

I have one SBS 2.5 here going to a raspberry pi with a can hat. I can't even see the SBS.

Maybe has someone an idea where to look first...