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Section II package limits

How many cells or batteries fit in one package under §173.185(c) / IATA PI 965–970 §II.

Battery

Chemistry

Configuration

Cell energy (Wh/cell)Battery energy (Wh/battery)

Cells per batteryNet Li mass per battery (kg)

Mode & plan

Transport mode

Batteries per package (planned)

Section II — package limits

Up to 2 batteries per package

Standalone lithium-ion cells or batteries within relief. Section II caps at 2 batteries OR 8 cells per package, net battery mass ≤ 2.5 kg, and 1 package per consignment on passenger aircraft. The lithium battery mark is required.

Max batteries / package

Max cells / package

Net Li mass / package

≤ 2.5 kg

Consignment cap

1 package

Your load — auditable math

Batteries per package (planned)2
Cells implied (4 × 2)8
Net Li mass (0.14 × 2)0.28 kg
Within Section IIOK

The rule that applies

IATA PI 965 §II — passenger aircraft

Sources

49 CFR §173.185(c) · IATA DGR PI 965–970 §II · ICAO TI 2025–2026 Table 8-1