Chevrolet Performance eCrate package (400v/200hp)

Re:Chevrolet Performance eCrate package (400v/200hp) by leeter on Thursday May 07, 2026 @08:37AM (#48048643)

Maybe? It's a 400V architecture, and honestly that's my criticism... 400V seems low at this point. Particularly for something requiring an "Authorized Installer" I'd have expected 800V architecture, if not pushing higher. Minimum 600V though... so IMO huge miss on GMs part. I do think GM does have an opportunity if they really wanted to do what you're suggesting and just make drop on chassis for square bodies etc.

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Re:Chevrolet Performance eCrate package (400v/200hp) by SoftTalker on Thursday May 07, 2026 @12:07PM (#48051117)

400V DC on a 66KWh battery will fry you in an instant if you don't know what you are doing or get careless with your tools.

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Re:Chevrolet Performance eCrate package (400v/200hp) by formerly_proven on Thursday May 07, 2026 @09:07AM (#48048965)

I'll bite.

What's the point of 800V with a battery this small? 400V already enables around 200 kW of charging, which is 3C with a pack this small. So charging is not limited by the voltage level, because the pack assuredly isn't reaching 3C. At 200hp the efficiency gains are marginal if they exist at all. So what would the benefit of 800V be, apart from higher costs?

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Re:Chevrolet Performance eCrate package (400v/200hp) by fgfarben on Thursday May 07, 2026 @02:16PM (#48052827)

Let's be realistic. GM is not interested in burning R&D money to make a good 800V electric crate kit. They only want to burn R&D money to make new profitable trucks.

They are doing this because they have a billion dollars of refurbished batteries sitting in warehouses that they need to dump.

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