One ATE, 20 SKUs a Day: Editable Projects and Batch Testing Kill Changeover Downtime
A charger line that builds for ten customers switches products constantly. Every switch means re-configuring the test program by hand — stop the line, open the editor, set limits, hope nobody fat-fingered a threshold. Editable test projects and batch testing are how one ATE runs a mixed lineup without the daily re-setup tax.
If your line builds the same single SKU forever, this article isn't for you. But most contract charger and adapter shops don't. They run a 20W private-label for customer A in the morning, a 65W GaN for customer B after lunch, and a 140W PD3.1 unit for customer C by end of shift. Each product needs its own test program: different protocols, different voltage/current limits, different pass bands. And every time you swap, the test station has to be re-set.
The hidden cost of manual changeover
Re-configuring a test program by hand isn't free. It costs you in three places that never show up on the equipment quote:
- Line stop time. The station is idle while someone sets it up — not testing, not earning.
- Setup error. A mistyped limit or a wrong protocol selected means units pass that shouldn't, or fail that should. The worst version is silent: a bad setting that lets defects through.
- Version drift. Two operators set up "the same" program two different ways, and now your records aren't comparable across batches.
What editable projects + batch testing actually do
Instead of re-building the test configuration every time, you build it once and reuse it. Concretely:
- Save each SKU as a project. The test sequence, limits, and protocols for a given model are stored as a named project — not scribbled on a bench sheet.
- One-click switch. Loading a new SKU is selecting its project, not re-typing parameters. The line keeps moving.
- Batch testing across a mix. Run a queue of different models in one session, each pulling its own project, instead of stopping between every variant.
- Color touchscreen operator control. The engineer sets it up once on a clear interface; the operator just picks the right project per run.
A worked scenario (example assumptions — swap in your real numbers)
Unremarkable example figures to show the shape of the saving:
- A line runs 20 different SKUs across a shift.
- Manual re-setup per SKU: 15 minutes → ~5 hours of station idle per shift just on changeover.
- With saved projects, switch time drops to under a minute → ~20 minutes total.
- Recovered test time: roughly 4.5 hours per shift, plus the setup-error risk removed.
20 SKUs × <1 min (saved project) = ~0.3 hrs / shift
Recovered: ~4.7 hrs of test capacity per shift