Study Shows EV Batteries Maintain Nearly 90% Capacity After 200k Km | Hacker News Reader

Study Shows EV Batteries Maintain Nearly 90% Capacity After 200k Km

techcrawlr.com

11 pointsbilsbie8 comments

> High currents, often resulting from rapid charging, quick acceleration, or high-speed driving, can negatively affect the battery’s state of health.

So to preserve battery health I need to spend 8 hours charging the battery at opposed to 45 minutes? Not a great selling point for EVs.

> Not a great selling point for EVs.

Depends on how you look at it ( and your circumstances ). I plug in at night and wake up to a fully charged, defrosted and pre-heated car.

Whether it took 45 minutes or 8 hours doesn’t matter, and not having to visit a petrol station once a week to pay 4x the cost is something I see as being a good selling point.

Also don’t drive it fast or in a spirited manner. The future is here, and no fun is allowed.

Driving any car like that will result in increased stress on components and wear. A lot of EVs have high-end sports-car levels of acceleration, and those aren’t known for being low-maintenance.

The difference to me is how that is applied. For most cars, including performance vehicles, you can minimize the impact of this by waiting until the car is warmed up, using the correct oil weight and changing it regularly, changing the air filter, etc. With an electric vehicle the wear seems more integral to the usage of it compared to an ICE.

Yeah, that’s true - it’s integral because an EV retains all of its components throughout its lifespan.

If we consider an ICE car’s fuel as a “component”, then it’s an interesting comparison: fuel is basically maximally degraded - it accumulates as much “wear” as possible - and then it’s jettisoned so what remains attached to the vehicle is comparatively less worn.

I'm much more interested in how they do at lower mileage but over longer periods.

Say I'll only drive maybe 5000 km a year. Can I expect an EV battery to still have most of its capacity after 25 years of that?

When do the batteries start to break down and become dangerous?

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