Extra Battery, How to Integrate with 24kWh Traction Battery?

[TonyWilliams]

If the additional battery cells are comparable to the original cells, and arranged in 96S, I see no reason to think that CHAdeMO will charge just fine with the original CHAdeMO setup.

I do remember a test done by Ingineer years ago where the LEAF would fault out if more than 30kW were added (I suspect it would exceed the regen limit).

[arnis]

Leaf regen limit is 50kW.

[jkenny23]

Leaf regen limit is 50kW.

Has anyone attempted to "force" the Leaf to use more regen to behave like B mode in the newer models, or the more aggressive regen of other EVs?

[mux]

I've read through all the threads that could pertain to this, and nobody has shown evidence of their work, just conjecture (much like with the extender battery - to my chagrin )

I'm going to attempt this at some point after I have successfully hacked into the EV CAN to modify reported GIDs to reflect the charge in my extender+main battery accurately. As far as I know, this can be achieved by spoofing requested torque messages from the VCM.

[IssacZachary]

I know this has been measured, estimated and posted on MNL but keep searching and searching, even at google.com with "site:mynissanleaf.com" and I'm still not finding this.

Does anyone know how many 18650's would fit in an emptied Leaf Battery case?

[LeftieBiker]

This topic may yield either that info or at least the dimensions to determine it yourself:

https://endless-sphere.com/forums/viewtopic.php?t=89680

[IssacZachary]

This topic may yield either that info or at least the dimensions to determine it yourself:

https://endless-sphere.com/forums/viewtopic.php?t=89680

Thanks! That's a big help!

[LeftieBiker]

Remember that it doesn't always help to specify a site when searching Google. There are other sites like the above that can be very helpful.

[mux]

I know this has been measured, estimated and posted on MNL but keep searching and searching, even at google.com with "site:mynissanleaf.com" and I'm still not finding this.

Does anyone know how many 18650's would fit in an emptied Leaf Battery case?

On a pure volume of the original cells-basis: The modules are 303x223x35mm, and there are 48 of these, so that's a total volume of 0.114m3 which would fit about 6000 18650s in a staggered pattern. Most likely you'd arrange them 60P, so it'd be 5760 cells for a maximum nominal capacity with modern cells of approx. 72kWh, but more likely around 55 if you include cell spacers, bus bars and all that jazz.

[jkenny23]

Question for mux - since I'm thinking of getting a head start with wiring tap from the VCM to the trunk, I was going to wire both the 3 contactor controls (PRE-CHARGE RELAY, SYSTEM MAIN RELAY 1, SYSTEM MAIN RELAY 2) as well as the 2 CAN bus lines in case I need to do any CAN bus reads or modification in the future. Will it be an issue having the extra 8' long stub of wire going to the trunk on the CAN bus?