WJR
AeroTDG / Battery Calculator
CALC–01
← WJR AeroTDG / A01 — ICAO Baseline B01 — Operator Reference Battery Calculator
Lithium Battery Assessment Tool

Can this battery fly?

Important Notice
Step 1 — What type of battery?
Select Battery Type
Choose the type that matches the markings on your battery. If you are unsure, check the label or the manufacturer’s documentation.
Step 2 — Calculate or enter Watt-hours
Calculate from mAh & Voltage
Most common marking on consumer batteries. Enter both values from the battery label.
mAh
V
Watt-hours (Wh)
Applicable rules for this battery
    Formula: Wh = (mAh ÷ 1,000) × Voltage Example: 10,000 mAh × 3.7 V = 37 Wh — well within limits
    Calculate from Ah & Voltage
    Used on larger batteries — some laptops, mobility aid batteries, power stations.
    Ah
    V
    Watt-hours (Wh)
    Applicable rules for this battery
      Formula: Wh = Ah × Voltage Example: 10 Ah × 11.1 V = 111 Wh — operator approval required
      Battery already marked in Wh
      Enter the Wh value marked directly on the battery label to check the threshold.
      Wh
      Watt-hours (Wh)
      Applicable rules for this battery
        Step 3 — What kind of item is it?
        Item-specific rules — ICAO TI Table 8-1, Item 1
        The rules differ depending on whether the battery is inside a device, carried as a spare, or is a power bank. Select the item type to see the full applicable conditions.
        Lithium Ion — Threshold Reference
        Watt-hour Acceptance Thresholds
        ● ≤ 100 Wh — Permitted
        • No operator approval required
        • Permitted in carry-on and checked baggage (devices)
        • Spare batteries and power banks — carry-on only
        • Devices in checked baggage must be completely switched off (not sleep/hibernation)
        ● 100 Wh – 160 Wh — Operator Approval Required
        • Operator approval must be obtained before arriving at the airport
        • Carry-on baggage only
        • Maximum 2 spare batteries per person at this rating
        • Terminals must be individually protected against short circuit
        ● Over 160 Wh — Prohibited
        • Not permitted in any baggage or on the person
        • No exceptions — cannot be accepted under any circumstances
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 a–e (as amended — Addendum No. 1, 27 March 2026)
        Checked Baggage — Switch-off Thresholds
        When must a device be completely switched off in checked baggage?
        Devices carrying batteries above these thresholds must be completely switched off — not in sleep or hibernation mode — when carried as checked baggage.
        Lithium Ion — exceeds 2.7 Wh per device
        • Device must be completely switched off in checked baggage
        • Must be protected from accidental activation and damage
        Lithium Metal — exceeds 0.3 g per device
        • Device must be completely switched off in checked baggage
        • Must be protected from accidental activation and damage
        Note — In practice, virtually all consumer electronics exceed these thresholds. As a general rule: always switch devices completely off when placing them in checked baggage.
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 ef)
        Power Banks — Additional Rules
        ⚠ Power banks have additional restrictions beyond the Wh limits
        • —Carry-on baggage only — never permitted in checked baggage
        • —Must not be recharged while on board the aircraft
        • —Should not be used to charge other devices while on board
        • —Maximum 2 power banks per person
        • —Must be individually protected against short circuit when not in use (original packaging, taped terminals, or separate bag)
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 i) — Addendum No. 1, 27 March 2026
        Battery Terminal Protection
        How to protect battery terminals — mandatory for spare batteries & power banks
        Acceptable methods
        • Keep in original retail packaging
        • Tape over exposed terminals with non-conductive tape (electrical tape or duct tape)
        • Place each battery in a separate plastic bag or protective pouch
        • Use a dedicated plastic battery storage case
        Unprotected terminals in contact with metal objects (coins, keys, other batteries) can cause short circuit, heat generation, and fire. Terminal protection is a mandatory safety requirement.
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 gh)
        How to find or calculate Wh
        Reading battery markings
        Battery marked in Wh
        • Use the marked value directly in the Direct Wh Entry calculator above
        Battery marked in mAh and Voltage
        • Use the mAh + Voltage calculator above
        • Wh = (mAh ÷ 1,000) × Voltage
        • Example: 5,000 mAh at 3.7 V = 18.5 Wh
        Battery marked in Ah and Voltage
        • Use the Ah + Voltage calculator above
        • Wh = Ah × Voltage
        • Example: 10 Ah at 11.1 V = 111 Wh
        If the Wh rating is not marked and cannot be calculated from available markings, check the manufacturer’s datasheet or product documentation. If Wh cannot be determined, consult your operator before travel.
        Lithium Metal — Gram Content Check
        Lithium Content (grams) — Threshold Check
        Lithium content in grams must be marked on the battery label or confirmed in the manufacturer’s datasheet. It cannot be calculated from voltage or capacity alone. Enter the marked gram content below, or use the threshold bands as a reference.
        g
        Acceptance thresholds — lithium metal
        ≤ 2 g
        Permitted — standard limit for all lithium metal batteries in devices and as spares
        Permitted
        2 g – 8 g
        Portable medical electronic devices only — operator approval required
        Carry-on baggage only. Max 2 spare batteries per person at this rating.
        Approval req.
        > 8 g
        Prohibited — exceeds maximum lithium content permitted for passenger carriage
        Prohibited
        Where to find lithium content:
        The lithium content in grams must be stated on the battery label. If not marked, check the product datasheet or contact the manufacturer. Lithium content is not the same as the battery’s weight — it refers only to the lithium metal within the cell chemistry.
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 a), b), d) — Addendum No. 1
        Checked Baggage — Switch-off Threshold
        Lithium Metal — checked baggage switch-off rule
        Device battery exceeds 0.3 g lithium content
        • Device must be completely switched off in checked baggage — not sleep or hibernation mode
        • Must be protected from accidental activation and physical damage
        Most lithium metal batteries in consumer devices exceed 0.3 g. As a general rule, always switch devices off completely when placing them in checked baggage.
        ICAO RefPart 8, Ch.1, Table 8-1, Item 1 ef)
        Other Battery Types — Quick Reference
        Acceptance summary — non-lithium batteries
        ● Non-spillable Wet Batteries — Permitted with conditions
        • Must meet the requirements of Special Provision A67
        • Must not exceed 12 volts and 100 Wh
        • Exposed terminals must be protected against short circuit
        • Maximum 2 spare batteries per person
        • If in equipment — protected from unintentional activation, or disconnected with terminals insulated
        ● Nickel-Metal Hydride (NiMH) Batteries — Permitted with conditions
        • Must comply with Special Provision A199
        • Batteries and heating elements must be isolated in equipment capable of generating extreme heat
        ● Dry Cell Batteries — Permitted with conditions
        • Must comply with Special Provision A123
        • Standard AA, AAA, C, D, and 9V alkaline batteries used in everyday devices are generally acceptable
        ● Spillable (Wet Cell) Batteries — Prohibited
        • Car batteries, motorcycle batteries, lead-acid wet cell batteries — not permitted
        • Battery acid (sulfuric acid) — not permitted
        ICAO RefPart 8, Ch.1, Table 8-1, Item 2
        Damaged, Recalled & Counterfeit Batteries
        ✗ Always Prohibited — regardless of battery type
        • Swollen or bulging batteries or devices
        • Cracked, dented, or visibly damaged casings
        • Leaking fluid or corrosion on terminals
        • Batteries hot to the touch, hissing, or venting
        • Devices subject to a manufacturer safety recall
        • Counterfeit or unbranded batteries without proper safety markings