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Battery pack depreciation is the one thing that worries me the most. But I wonder if it would be possible and cost effective to test cells and combine the cell
by 908B64B197 6y ago
Battery pack depreciation is the one thing that worries me the most.
But I wonder if it would be possible and cost effective to test cells and combine the cells that are still good into a newer battery pack. Maybe by the manufacturer.
Or to just rate an existing one and give it a score so the consumer can have a clue.
- dzhiurgis 6y agoSo far it's only Nissan that has pretty bad batteries. AFAIK everyone else actively manages the temperature when charging/discharging and are over-provisioned. Plus batteries are getting dirt cheap. As in - TCO is less than your tyres.
- theshrike79 6y agoThe batteries themselves already have sensors you can query for individual battery pack (a bunch of cells) voltages. Replacing a set of cells inside a battery isn't a completely trivial operation, but still doable, people are already doing this for Priuses and Nissan Leafs - the only two cars old enough to have batteries go bad outside of warranty. The 3rd party battery industry will catch up when cars get old enough to have battery issues. On the other hand, according to recent studies, EV batteries don't really degrade that much over time. Leaf is the exception, because the battery temperature management was utter shit.