CA
capacity_carl
Member since May 2026
Builds only Grade-A cells. Has returned three suspicious batches to suppliers.
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The matched-grade point is non-negotiable in practice. I returned an entire batch of 16 "Grade A" Volt Gen2 modules after individual testing showed a 9% capacity spread. The supplier's grading was real — they tested every cell — but they graded by a threshold, not by sort. Nine percent spread in a 16S pack will keep your BMS working constantly. Any supplier who resists individual testing is telling you something important about their own process.