Jérôme, I've lost track of all the Twizy battery projects that have been or are currently done. After I sold my Twizy two years ago, quite a lot has happened. Some of the new batteries were based on the edriver BMS, but as Pascal no longer maintains that project, most current projects are based on my VirtualBMS solution (https://github.com/dexterbg/Twizy-Virtual-BMS) in combination with some standard China BMS. There are also quite some that simply replace the cells and keep using the original BMS. That has some downsides but basically works. Capacity of custom batteries normally is around 10 kWh, that easily fits in the original battery box, but you can go higher with the right cells. The most used Twizy replacement battery is probably the CATL powerblock: https://www.power-and-storage.de/shop/CATL-PowerBlock-14S-48-10-48V-10-kWh-p... You really should check out the german Twizy forum for all the battery projects: https://www.twizy-forum.de/Alternativ-Akku And you should get in contact with Martin ("Snorre") and Christian ("TwizyChrisy") on the forum. Martin was one of the first to rework his battery and is up to date with all current projects. Chris owns a lot (like: a lot) of Twizys and is continously working on projects. Chris has also published some videos on his CATL rework: https://www.youtube.com/@TwizyChrisy/search?query=akku Probably these guys can also help you with buying the components needed. Regards, Michael Am 23.06.23 um 12:36 schrieb Jérôme Nicolle:
Hi !
I hope it's OK to post this here. Sorry for the inconvenience if it is not.
I'm looking for updated informations regarding modified batteries for the Twizy. Mine is down to about 4.5kWh (fully owned) after 8 years in service.
What capacity could we reasonably reach with newer cells ?
With plumetting prices for the cells, would there be anyone (preferably close to France) from whom I could buy all the required modules (including Twizy Virtual BMS), ready to fit in the battery case, or with a new case ?
Thanks !
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