Recent content by Cor

Just for posterity sake, I am going to post this bit of info here as well: The adapter kit for the new Leaf battery is *NOT* to adapt the control harness. When a dealer orders a newer battery (2013-2015 type) for an old Leaf (2011-2012) they use the part number that causes the factory to deliver...

I think that explains it - new townhome developments go up where industrial sites used to be, so they are supplied with 3 phase power. That is the reason for the 208V from 2 legs of 120V: the 3-phase supply has its phases at 120 deg from each other, so the voltage between the two phases is not...

If you want a set of original Leaf contactors (including the pre-charge) then let me know, I have several contactor boxes from the Leaf packs that I disassembled. I am using twin Leaf packs in parallel, each with its own BMS, in my electric truck. Since it already had its own contactors, I do...

I thought that Nissan installs a new battery for $5900 or is that what you are referring to?

Cool pics, showing how the BMS is aging out old info and averaging the new data

I picked up the 2014 battery and noticed some dents in the exterior shell, which did not concern me too much as I have seen plenty junkyard packs having huge dents, only to be a cosmetic issue. The BMS reported 55 Ah which is decent, about 85% capacity left. But just to make sure, I took the top...

Freight shipping of a pack is about $500, I shipped one in a crate last month to someone on the East coast. There was actually a pack available not too far away from him, but before I could arrange it, it was bought by someone else in California, so I had to ship a pack from California to the...

End next week I expect to have another 2014 Leaf battery available, in case someone is interested.

Most my time is spent working on the wiring of the modules, but what is not so clear (unless you find the right frames in the video) is that I have a helper to carry the stacks. The weight of the stacks is just over 100 lbs for each of the two front stacks with 12 modules and just over 200 lbs...

Hi Feng, That is why LeafSpy is so useful. Look at the cell balance when the pack is full (SoC near 90%) and again when the pack is empty (SoC near 20%) You will see that the average cell voltage changes from about 4.1V down to about 3.7V and the difference between modules is typically around...

Ah, thanks for that pointer. I had not seen evidence that the 30kWh chemistry is different, else the voltages would not be so different. In that case it is not useful to put the 80Ah modules into a 64Ah pack, since the BMS will not be using most of the extra power, I agree. You will need the 30...

I think you meant to say that if the LBC *does* adjust (to the larger capacity) then that is good. As far as I know, the 30kWh pack is the same chemistry as the 24 kWh version, so I do not expect a radical different discharge profile, just larger capacity and the LBC *has to* adjust capacity...

Hi Marko, Yes, the 24kWh modules actually have the text 500Wh printed on them and yes, they are always stacked in even numbers, that is why the 30kWh pack could combine two of them to increase usable volume and eliminate space that the enclosure uses. The 24kWh pack has two front stacks of 12...

Got a call today from the dismantler that a few more packs are available, so if anyone is interested...

Hi Drees, When I receive a pack, I used LeafSpy to read the info from the BMS (LBC) about capacity and health of the pack. If the pack is still in the car then it is simple - just plug the dongle into the OBD2 connector. When testing a pack by itself, I use clip on leads or header plugs to...