EV Charging Infrastructure Manufacturing worked example

Firmware Flashing Capacity at 99% firmware station uptime: a worked example in ev charging infrastructure manufacturing

This scenario runs the firmware flashing capacity calculation on the strong side: 99% firmware station uptime, with every other input held at its documented default. a test engineer needs to know if firmware flashing stations can support the build plan

The inputs for this scenario

  • Units flashed per programming cycle: 8 units / cycle (unchanged)
  • Available firmware flashing cycles: 42 cycles (unchanged)
  • Firmware station uptime: 99 % (raised for this scenario; the documented default is 92)
  • First-pass firmware flash yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross firmware flashing capacity = units per programming cycle × available flashing cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 323 units for good firmware flashing capacity, the number this scenario is built around.
  • At this operating point the engine returns 336 units for gross firmware flashing capacity.
  • At this operating point the engine returns 3.36 units for units lost to flashing station downtime.
  • At this operating point the engine returns 9.98 units for units lost to firmware retry or rework.

How this compares with the baseline

  • Against the tool's baseline example, where firmware station uptime sits at 92% and the headline result is 300 units, this scenario comes in 7.61% above the baseline at 323 units.
  • Use it when sizing firmware flashing capacity for a shift, evaluating whether to add a parallel programmer, or setting an achievable daily flashing commitment. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Good firmware flashing capacity: 323 units (headline result)
  • Gross firmware flashing capacity: 336 units
  • Units lost to flashing station downtime: 3.36 units
  • Units lost to firmware retry or rework: 9.98 units

Run it with your numbers

  • Every input above is editable in the live Firmware Flashing Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.