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Comment by nickjarboe | Hacker News Reader

Since Musk is not making electric cars just for the profits, maybe Tesla will produce replacement batteries with better specs at lower cost. Tesla cars are designed to have battery packs that can be easily replaced contra Apples recent devices. Tesla car batteries will be the first ones, at volume, that people with electric cars will want to replace. If Tesla sets the trend other car manufactures will be at a disadvantage if they don't follow.

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One of the overlooked cool benefits of EVs imo, is that you can repurpose old batteries, even if they aren't suitable for the EV market. As a battery ages and loses capacity, say it goes down to only 50% of it's capacity when new, it may no longer be acceptable for use in a car but it could still be perfectly adequate as a back up power source in a house.

Right. So when you are calculating costs, you need to include how much you are going to get for your old battery at usedlionbatteries.com. Of course, the faster new batteries get cheaper and better, the less you old battery is going to be worth.

That's certainly true but I was mostly meaning to highlight the fact that as these batteries age, and may no longer be suitable for their original purpose, they could still be useful for a whole range of alternative purposes.

As the original battery owner I don't intend to get much for selling a used car battery, but it still seems quite cool to have it be repurposed for some other use.

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