EV Charging Infrastructure Manufacturing worked example

Firmware Flashing Capacity at 66% firmware station uptime: a worked example in ev charging infrastructure manufacturing

Here is what the math looks like when conditions slip. We hold every other input steady and drop firmware station uptime to 66%, then walk the calculation through step by step. Estimate good firmware flashing throughput for EV chargers, dispensers, controllers, or power modules.

The inputs for this scenario

  • Units flashed per programming cycle: 8 units / cycle (held at the documented default)
  • Available firmware flashing cycles: 42 cycles (held at the documented default)
  • Firmware station uptime: 66 % (the input this scenario stresses; the baseline uses 92)
  • First-pass firmware flash yield: 97 % (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Gross firmware flashing capacity = units per programming cycle × available flashing cycles.
  • Good firmware flashing capacity works out to 215 units at these inputs, and this is the headline figure for the scenario.
  • Gross firmware flashing capacity works out to 336 units at these inputs.
  • Units lost to flashing station downtime works out to 114 units at these inputs.
  • Units lost to firmware retry or rework works out to 6.65 units at these inputs.

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 28.26% below the baseline at 215 units.
  • The practical read: the gap between this scenario and the baseline is entirely attributable to firmware station uptime, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It assumes uptime and yield are independent and stable; in practice a flaky station can drive both down together, and rework units that eventually pass on a retry are counted as losses here rather than recovered output.

Results at a glance

  • Good firmware flashing capacity: 215 units (headline result)
  • Gross firmware flashing capacity: 336 units
  • Units lost to flashing station downtime: 114 units
  • Units lost to firmware retry or rework: 6.65 units

Run it with your numbers

  • To rerun this with your own numbers, open the live Firmware Flashing Capacity calculator, set firmware station uptime to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.