Getting 18650 from Renault Zoe

rumape10

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Mar 26, 2018
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Hi,

I have the chance to get a Renault Zoe '14 battery.
Do you recommend me to buy it? I'd have to pay 500 for it.

My final goal is to get enough cells to build a powerwall for a house, and this could be a quick way to get lot of cells of the same kind and brand.

I wait for your advice.

Thanks, and regards.
 
as far as I know the ZOE has no 18650 cells, but is made up of pouch cells. 500 is not a price for a zoe battery, it has 22 kwh. So far, however, there is no further information on the BMS, which should be quite good.
At that price, I would suspect a dubious source. Is the battery damaged?
 
Hi Tango,

When you say is not a price, you mean it is cheap or expensive?
It comes from a Zoe crash, de battery is not damaged as I can see from outside.

Regards,
 
The battery is made from 192 cells with 36Ah each, these are no 18650s. 500 EUR is a suspiciously low price. It's a 22kWh battery, you would expect to pay much more than 500 EUR. Even at 100 EUR per kWh, 2200 EUR in total, this would still be a very good deal. Also, Renault doesn't sell these batteries, they are leased to the customer. So whoever is selling you this battery, check the price and check what you are supposed to get and also check if the seller is the actual owner of this battery.
 
Hi DarkRaven,

Ok, now I understand Tango meant cheap.
I know most of this cars came with an Overlease contract. But a few of them, at least at Spain, where sold without battery rental, and this is one of them.
I will recheck, but if I found everything is ok... could I use it as a powerwall? This batteries are 400V, so I dont know if its easy to readapt to other voltage, and if it could be mixed with another powerwall built by myself (with 18650).

Regards,
 
I don't know how this battery is assembled and if it can easily be reconfigured to a lower voltage to be used in a powerwall. A lot of the cells will be in series to get the 400V, probably something like 96s2p. Maybe you have to disassemble it completely down to the individual cells. Maybe you can re-arrange the cell connections to lower the voltage and keep the battery in its original shape, if this is beneficial in some way.
The chemistry of these cells is a usual lithium chemistry though, so each of these big 192 36Ah cells behaves like a 18650 regarding the voltage. They just have a bigger capacity. So voltage-wise they can be mixed with 18650s. Capacity-wise you have to make sure you match their capacities. I wouldn't mix them within the same battery. I'd rather make several batteries, or "strings" as some call it, and put them in parallel.
 
Ok, I'll keep researching. I don't mind if it doesn't keep its original shape, I would reorganize it.

Regards,


Another question related to this (sorry if it sounds newbie :( )
I use a OPUS style charger / discharger to test the 18650 capacities and voltages.
How could I test this pouch cells status?

Regards,
 
With a proportionally bigger device that supports higher charging and discharging currents. Like the iCharger series.
 
If you have the chance of buying a zoe battery for EUR500, jump at the chance. The Zoe will be an 'i' model if it is battery owned - this should be on a sticker inside the door jam.
 
hi guys is there some more intelligence on zoe packs. I know a guy that has three packs laying around...

regards
karl
 
At 500 , one could hazard a chance here to get the deal of the century.
 
Its more about how they can be disassembled and used for a powerwall...
 
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