Quality
61 tests, five families, and the certificate numbers we do not publish
Published 2026-11-02 · Quality · 5 min read
A test list is easy to publish when it is short. The useful version states what is tested, under which condition, and what happens when an item does not apply.
Why 61 items, not a badge
The quality page lists 61 tests in five families: 12 climate, 15 mechanical, 10 electrical and RF, 11 chemical and finish, and 13 battery and packaging. The list is not a claim that every product passes every item. Some tests apply only to rechargeable packs; ten items are marked that way. Others are optional or not applicable to a given configuration. The report records which is which.
The instruments behind the list
The lab runs the list on 29 instruments, from climate chambers to key-life rigs. The instrument matters because it fixes the condition: a drop test is not a number, it is a height, a surface and a sequence. A report that says “drop passed” without those details cannot be compared with another supplier’s report.
What we do not publish
We do not publish certificate numbers or validity dates. A certificate is issued for a specific model, configuration and market, and the copy that matters is the one that matches the product being bought. Verified copies are issued on request against a program. Publishing a number without the matching configuration invites the wrong comparison.
How to read the report
Start with the items marked not applicable, not the ones marked pass. The exceptions tell you how the product is actually built. Then check the sample size and the deviation record. A test that never failed is less informative than a test that failed once and was fixed, provided the fix is written down.
What happens when an item fails
A failed item is not the end of a program. It is recorded with the condition, the sample and the deviation, and the fix is written into the next revision. If the fix changes the housing or the firmware, the affected items are re-run rather than assumed. The report a buyer receives lists the revision it was run against, so a later change cannot be hidden behind an older pass.
This is also why we do not publish a single “passed” badge. A badge cannot carry a condition, a sample size or a revision, and those are the parts a buyer needs to compare two suppliers.
Where the list comes from
The list is maintained with the product platforms, not with the sales deck. When a new housing material or a new battery type is introduced, the affected items are reviewed and the revision is dated. The 61-item list is the current revision; a program report cites the revision it was run against.
Test scope follows the final configuration. Reports are issued against the program revision.
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