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Lithium Battery Decision Tree PRO

UN 3480 / 3481 / 3090 / 3091 — packaging, marking, placard, and exception logic per 49 CFR § 173.185 + IATA DGR Section II

Step 1 of 4 — Identify chemistry + form

What type of lithium battery are you shipping?

Lithium-ion · packed alone

UN 3480 — bare batteries, not in or with equipment

Lithium-ion · in or with equipment

UN 3481 — installed in device, or packed with the device

Lithium-metal · packed alone

UN 3090 — primary (non-rechargeable) lithium

Lithium-metal · in or with equipment

UN 3091 — installed in device, or packed with the device

Step 2 of 4 — Capacity

Watt-hour rating per CELL (ion)

Section II if ≤ 20 Wh per cell

Watt-hour rating per BATTERY (ion)

Section II if ≤ 100 Wh per battery

Lithium content per CELL (g) — metal only

Section II if ≤ 1 g per cell

Lithium content per BATTERY (g) — metal only

Section II if ≤ 2 g per battery

Step 3 of 4 — Mode + status

Step 4 of 4 — Result

Complete steps 1-3, then click Evaluate.