2026-09-21 · KeXinMaterials 编辑团队
UN 3091 锂电池运输防护箱:B2B 合规指南 2026
锂电池运输受 UN 3091(联合国危险货物运输建议)管治。装锂电池的箱必须满足 UN 3091 + IATA DGR(空)+ 49 CFR(美公路/铁路)+ UL 1642 / 2054(电池安全)。2026 B2B 合规指南。
UN 3091 分类概览
UN 3091 is the UN number for "Lithium batteries contained in equipment" or "Lithium batteries packed with equipment". Regulated by UN Recommendations on the Transport of Dangerous Goods (UN RTDG).
UN 3091 covers lithium batteries contained in or packed with equipment. Distinct from UN 3480 (lithium batteries alone) and UN 3481 (lithium batteries in equipment).
UN 3091 regulations: 49 CFR (US road/rail), IATA DGR (air), IMDG (sea), ADR (road EU), RID (rail EU), ADN (inland waterways EU).
Lithium types: lithium-ion (Li-ion, rechargeable) and lithium metal (Li-metal, non-rechargeable). Different regulations.
UN 3091 limits for air transport: lithium-ion <100 Wh per kg or <300 Wh per battery; lithium metal <2 g Li per battery. Above limits = Class 9 Dangerous Goods with full UN packaging requirements.
IATA 危险品规则(DGR)
IATA DGR (Dangerous Goods Regulations) is the global standard for air transport of dangerous goods including lithium batteries. Updated annually by IATA.
IATA DGR 65th Edition (2024): Section 4.2 (lithium batteries), Section II (PI 965-970) for Section II provisions (small battery exception).
Section II provisions (PI 965 / 966 / 967): small lithium battery exception. Requires: (a) Watt-hour rating <100 Wh (Li-ion) or lithium content <2 g (Li-metal). (b) Battery tested per UN 38.3. (c) Package marked "Lithium battery" or "Lithium ion battery". (d) Package weight <10 kg (most PI).
Section I provisions (PI 965-970): larger lithium batteries (Class 9). Requires UN specification packaging + marking + documentation.
Operator variations: Some airlines prohibit or restrict lithium batteries (cargo + passenger). Check with airline.
For protective cases carrying drones / electronics with batteries: PI 967 (lithium batteries in equipment) typically applies for small consumer / commercial drones.
49 CFR(美国 DOT)公路+铁路
49 CFR (Code of Federal Regulations Title 49) governs lithium battery transport by road and rail in the United States. Issued by PHMSA (Pipeline and Hazardous Materials Safety Administration).
49 CFR 173.185 (Lithium cells and batteries): primary US regulation for lithium battery transport. Covers packaging + marking + documentation.
Exceptions for small lithium batteries: 49 CFR 173.185(c)(1) (consumer electronics) and 49 CFR 173.185(c)(4) (small battery exception). Similar to IATA Section II.
49 CFR 173.185(c)(4) small battery exception: Li-ion <30 Wh per battery OR <150 Wh aggregate. Li-metal <25 g lithium. May be transported without UN specification packaging if properly marked.
For drone cases with Li-ion battery (typically 50-100 Wh): 49 CFR 173.185(c)(4) exception applies. Mark "Lithium battery" on outer package. Use strong outer packaging (hard case).
State variations: California + New York + others have additional state-level lithium battery transport rules.
电池安全标准(UL 1642/2054 + IEC 62133)
Lithium batteries themselves must meet safety standards. UL 1642 (Li-ion cells) + UL 2054 (Li-ion packs) for North America. IEC 62133 (cells + packs) for international.
UL 1642: Standard for Lithium Cells. Tests: short circuit, overcharge, forced discharge, crush, impact, shock, vibration, heating, temperature cycling. Required for North America.
UL 2054: Standard for Household and Commercial Batteries. Tests: same as UL 1642 + pack-level tests (enclosure, drop, drop impact, mold stress relief). Required for North America.
IEC 62133: International standard for secondary (rechargeable) cells and batteries. Tests: similar to UL 1642 / 2054. Required for international (EU / Asia / global).
UN 38.3: UN Manual of Tests and Criteria Section III. Required for ALL lithium battery transport. Tests: altitude simulation, thermal test, vibration, shock, external short circuit, impact, overcharge, forced discharge.
For B2B procurement: request UL 1642 / 2054 / IEC 62133 / UN 38.3 test reports per battery model. Verify battery certification.
锂电池运输防护箱设计
Protective cases carrying lithium batteries must be designed for safety + regulatory compliance.
Case material: rigid PP or PP+GF for impact resistance. Must prevent accidental activation of battery during transport.
Battery retention: dedicated foam cavity for each battery. Battery must NOT move during transport. Custom CNC PU foam or pick-and-pluck PE foam.
Venting: cases should NOT be airtight (lithium batteries can vent gases under fault conditions). Vent plug or pressure relief valve recommended.
Internal short circuit prevention: battery terminals must NOT contact conductive materials. Plastic / foam only around terminals.
External labels: "Lithium battery" or "Lithium ion battery" + UN 3091 + handling labels. Per IATA DGR + 49 CFR.
Placards (Class 9): required for packages >30 kg gross weight or air cargo. Class 9 lithium battery diamond label.
B2B 应用场景
Different applications require different UN 3091 + case + battery combinations. Below is the 2026 B2B procurement recommendation.
Drone case (consumer / commercial): 1-5 drones + 1-5 batteries (50-100 Wh each). UN 3091 + 49 CFR small battery exception + IATA PI 967 + UN 38.3 battery testing.
EV charging equipment (OEM): larger battery packs (1-5 kWh). UN 3481 (battery in equipment) or UN 3480 (battery alone). UN specification packaging required.
Electronics (laptop / camera / professional audio): embedded batteries typically 50-100 Wh. UN 3091 + 49 CFR small battery exception.
Medical device (portable diagnostic, infusion pump): embedded batteries 50-200 Wh. UN 3091 + 49 CFR + IEC 62133 medical grade.
Military / tactical (field radio, equipment with battery): 100-500 Wh batteries. UN 3091 + MIL-STD + ITAR. Special documentation.
Spare batteries (replacement, separately packaged): UN 3091 + 49 CFR small battery exception (if within limits). Outer packaging mandatory.
电池尺寸 + 瓦时限制
Watt-hour rating is critical for UN 3091 + IATA + 49 CFR compliance. Different limits apply.
Li-ion battery watt-hour: voltage (V) × capacity (Ah). E.g., 11.1V × 4.4Ah = 48.8 Wh.
IATA Section II limit: <100 Wh per Li-ion battery. Above 100 Wh = full Section I or Class 9 dangerous goods.
IATA Section II packaging limit: most PI 967 packages <10 kg gross weight.
49 CFR small battery exception: Li-ion <30 Wh per battery OR <150 Wh aggregate. Above = full Class 9 regulation.
Lithium metal limit (Li-metal, non-rechargeable): <2 g lithium content per battery. Above = Class 9 dangerous goods.
Multiple batteries in case: aggregate watt-hour may apply. Verify with carrier.
文档 + 测试
B2B procurement requires extensive documentation for lithium battery + case combination.
UN 38.3 battery test report: required for ALL lithium battery transport. Tests: altitude, thermal, vibration, shock, external short circuit, impact, overcharge, forced discharge. Cost USD 5,000-15,000 per battery model.
UL 1642 / 2054 or IEC 62133 battery safety test report: per battery model.
UN 3091 case certification: not always required for small battery exception. Required for Class 9 packages (>30 kg or >100 Wh per battery).
Case drop test: 1.2m drop test for battery-carrying case per IATA DGR + 49 CFR.
Stack test: case stacking pressure (typically 3m of stacked equivalent / 24-hour pressure test).
Vibration test: case vibration per UN RTDG.
成本 + 交期 + 起订量
Lithium battery case + battery + certification cost is higher than standard cases.
Stock drone case (drone + battery, 50-100 Wh): USD 50-200. Self-certification. Lead time 7-15 days.
Custom OEM drone case: USD 100-500. Custom foam + UN 3091 compliance + UN 38.3 verified battery. Lead time 30-60 days.
Battery alone (replacement Li-ion 50 Wh): USD 30-100 per battery (UL 1642 + IEC 62133 certified). Lead time 4-8 weeks.
UN 38.3 testing: USD 5,000-15,000 per battery model. Lead time 4-8 weeks. Required for transport.
UL 1642 / 2054 testing: USD 5,000-15,000 per battery model. Lead time 4-8 weeks.
IEC 62133 testing: USD 8,000-20,000 per battery model. Lead time 6-12 weeks.
Combined certification (UN 38.3 + UL 1642 + IEC 62133): USD 15,000-40,000 per battery model.
核心要点
- UN 3091 涵盖设备内或与设备一起包装的锂离子(不同于 UN 3480/3481)
- IATA DGR Section II 小电池例外:<100 Wh 锂离子或 <2 g 锂金属
- 49 CFR 小电池例外:<30 Wh/电池或 <150 Wh 合计锂离子
- 电池安全:UL 1642/2054 + IEC 62133 + UN 38.3(所有运输强制)
- 箱设计:刚性 PP/PP+GF + 电池腔 + 通风 + "锂电池"标签
常见问题
什么是 UN 3091?
UN 3091 是联合国"设备内锂电池"或"与设备一起包装的锂电池"的 UN 编号。
UN 38.3 测试是必需的吗?
是的。UN 38.3 对所有锂电池运输都是强制性的。
无人机电池的瓦时限制是多少?
消费/商业无人机电池通常 50-100 Wh。
无人机电池需要 UL 1642 吗?
对于北美(美国/加拿大),消费/商业无人机需要 UL 1642 + UL 2054。
能否在硬壳箱中空运锂离子电池?
可以,但需要适当的合规。
UN 3091 和 UN 3480 的区别?
UN 3091:设备内锂电池 OR 与设备一起包装的锂电池。
UN 38.3 测试需要多长时间?
UN 38.3 测试每电池型号需 4-8 周。