Across battery-line procurement specifications from 2024 to 2026, a trend is confirmed in which the Cognex, Keyence, ISRA, and MVTec deep-learning vision-inspection platforms have effectively become standard fixtures. However, only inspection-accuracy specs are typically stated, while the effect an AI vision-inspection gate has on the line's overall OEE performance rate and takt-time variance is often not treated as a separate design item. This article redefines the AI vision-inspection gate as two interface variables — judgment delay and reject-merge point — and addresses the procedure for incorporating them into line-balancing calculations. To state the conclusion first, it is not the accuracy of the AI vision inspection itself, but the buffer-capacity design…