It would be useful to have some references explaining that. My guesstimate was that charging a new cell pack would heat it by 1 or 2W/kg and that if an old one heated at 8W/kg it would get gently warm....the cell struggles more with charging and can get hotter and hotter. [...] An old heavily used battery pack is far more likely to fail and lead to fires.
Certifying used electric bikes... perhaps the cheapest way will be to recycle the old battery and fit a new one (which is where products like Gouach battery come in). The Common Charging Directive (USB-C) is going to look pretty silly unless the EU succeeds with its proposals for micromobility battery recycling, so at some point the ebike industry will probably have to drop the voodoo about every new ebike model needing a tied proprietary charger.
https://www.gouach.com/blog-en/battery- ... ed-to-know
