Tests with methodology changes¶
The preface lists each clause whose test method was revised. Some appear alongside their 5.x requirement (those are "both" — see tests that got stricter); others are method-only.
Cell tests — method only¶
For these three cell tests, only the method (8.1.x) is listed in the preface; the matching 5.1.x requirement clauses are not in the change list.
| Clause | Test | Delta |
|---|---|---|
| 8.1.2 | Over-discharge | method |
| 8.1.5 | Heating | method |
| 8.1.7 | Compression | method |
Pack/system tests — method changes¶
| Clause | Test | Method revised? | Requirement (5.x) also revised? | Net delta |
|---|---|---|---|---|
| 8.2.1 | Vibration | yes | yes | both |
| 8.2.4 | Compression | yes | yes | both |
| 8.2.7 + Appendix C | External fire, Thermal propagation | yes | yes | both (headline) |
| 8.2.8 | Temperature shock | yes | yes | both |
| 8.2.9 | Salt fog | yes | yes | both |
| 8.2.10 | High altitude | yes | yes | both |
| 8.2.11 | Over-temperature protection | yes | yes | both |
| 8.2.12 | Over-current protection | yes | yes | both |
| 8.2.14 | Overcharge protection | yes | yes | both |
Pack/system tests — requirements only (no method change)¶
For these tests the preface lists the 5.x clause but not the 8.x clause, so the method is treated as unchanged from 2020.
| Clause pair | Test | Delta |
|---|---|---|
| 5.2.2 | Mechanical shock | requirements |
| 5.2.3 | Simulated collision | requirements |
| 5.2.5 | Damp heat cycling | requirements |
| 5.2.6 | Immersion | requirements |
| 5.2.13 | External short-circuit protection | requirements |
| 5.2.15 | Over-discharge protection | requirements |
Engineering note (non-normative): "method unchanged" in the preface does not always mean the 2020 and 2025 procedure tables read identically. The preface change list is the authoritative cross-reference, but an OEM porting a 2020 test report to 2025 should still spot-check the procedure text — typo-level edits to wording, table layout, and figure references are not always called out.
New tests (for context)¶
These are not in this list because they are new, not revised:
| Clause | Test | Status |
|---|---|---|
| 8.1.8 | Safety after fast-charge cycles | new |
| 8.2.16 | Bottom impact | new |
See newly added tests.
Cross-reference¶
- Tests that got stricter — companion list for 5.x changes.
- Quick diff — the full preface change list.
Source¶
Preface, GB 38031-2025 (PDF pages 5–6).