Hi experts,
I’ve obtained 4 batteries from on Jaguar I-Pace and want to make a plug In homebattery. ( They are tested, found OK by Jaguar, but not good enough for cars.)
4x 2.6kwh 11v
I’m an absolute beginner. I would like connect this via a dedicated wall socket. Power up/down not more than 2500W.
Control it via HomeAssisant (Running now on a Rasberry Pie)
How to start with a project like this ? Which Victron products should I use ?
Thanks for the feedback
You cannot set up a system that puts power back into a wall socket. Trying to do that is very dangerous.
If you need a ‘plug in system’ then it is OK to plug the AC in of a multiplus 3000 to a wall socket, but on the output side the wiring must be kept separated from the normal domestic supply.
If you want to set up the system as a backup supply using the house wiring, then consult a qualified electrician.
Thanks for the feedback !
How are you going to manage these batteries with a BMS. These do not sound like the normal safer lithium iron phosphate chemistry used in domestic battery packs but one of the more volatile types. Without a BMS they will not have safety protection. We have had posts on here of people using car batteries without a BMS causing fires.
Be very careful.
Indeed, that is my question , wich products from Victron should I buy to work as safe as possible. (The Victron website is very cryptic to me)
My initial setup should be something simple , in/out 2000W maximum…first baby steps into this new world.
I got 4 batteries for free
Victron DO NOT provide BMSs for DIY batteries so you need to sort that out first. Victron BMSs only work on Victron batteries. Victron products by default are set up for lithium iron phosphate batteries not the other types, although they are configurable by the knowledgeable user for the other types. Therefore, until you have sorted out your batteries there is little support that can be obtained here.
Thank you again for the clear feedback ! To bad Victron won’t work for my use case then, they look great products.
Inverters, chargers solar chargers will all work, but you need to get your battery sorted first, which we can not help with. I suggest you find a BMS that has CAN communication that is compatible with Victron then once you have that sorted come back with more info, which can then suit your battery pack.
At 11V these are not single cells, but would seem to be 2 in series. Even then the 5.5V cell voltage would be too high for most BMS devices - these normally top out at 5V.
I would expect them to be 3S NMC with a nominal voltage of 3.7V = 11.1V.
Found the following on line:
The Jaguar I-Pace uses LG Energy Solution batteries, the same manufacturer that produced batteries for the Bolt, Bolt EUV, and Kona Electric. There were several isolated incidents in which these vehicles caught fire, sparking questions about the battery packs.
In November 2020, LG Energy Solution initially denied that its battery cells were the source of the fires, but agreed to corporate with the manufacturers. However, nearly a year later, LG Energy Solution agreed to pay GM $1.9 billion and Hyundai around $623 million as part of a recall.
Yes these are NMC batteries, so 3S per pack - can you get at the intermediate terminals for BMS & balancing - one can in the LEaf battery cells which are 2S - .
In view of the above, unless I had extensive experience, I would not even consider attempting to make a system based on these batteries. @fredICS Do yourself a favor, return these cells to where you got them from and if you want a back up home system, start with commercially available batteries which integrate with the inverter and control systems.
Thanks for your feedback, good advice indeed .
