i was reading about lithium lumps i batteries that cause lots of issues.. a new charging method seems to get these lumps moving again and back into operation.
no idea if this system will be usable on current batteries but i think it will. unfortunately i cant find article now.
Current Car: Hyundai Kona Premium EV...2 way 40kg hoist
Last Car: Toyota C-HR Excel Hybrid...4 way 80kg hoist