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A comment on Can "second life" EV batteries work as grid-scale energy storage?. Parent comment

Re:Can "second life" EV batteries work as grid-scale energy ... by torginus on Friday October 24, 2025 @04:12AM (#45692173)
That looks quite a bit cheaper than the pricing I'm used to seeing, like less than half - not saying they're bad, but probably there's a DIY and risk factor involved compared to buying a more established brand like BYD or Huawei.

I'm just pointing out this is way lower than typical pricing

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Re:Can "second life" EV batteries work as grid-scale energy ... by adwn on Friday October 24, 2025 @05:09AM (#45692527)
Maybe, but I think the premium charged by the main manufacturer's is unjustifiably high. Those battery boxes are relatively dumb: besides the cells, they just need some voltage and temperature sensors for monitoring, some power electronics for balancing, a microprocessor, and an enclosure with connectors. Unlike a grid-tied inverter, this is a really simple system, and there's no way a 500–700% price premium over the cells is reasonable.
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