Key limits for rechargeable cells (lithium‑ion): items with cells installed in equipment are normally permitted in cabin if switched off and terminals protected; spare cells are prohibited in the hold and must remain in the cabin. Rating thresholds: ≤100 Wh – generally allowed as spares in cabin; 100–160 Wh – allowed only if airline approval is obtained and typically limited to two spare units per passenger; >160 Wh – not permitted for passenger transport.
Key limits for non‑rechargeable cells (lithium‑metal): elemental lithium per cell ≤2 g is usually permitted as a spare in the cabin; >2 g is forbidden. All spare cells require terminal protection (tape or original packaging), placement in separate protective pouches or bags, and prohibition of loose terminals touching other metal objects.
Packing steps that reduce risk: switch devices off, disable auto‑on functions, place each powered play item in a cabin bag; remove spare cells from devices and treat them as spares; label or retain manufacturer specification showing Wh rating for power packs; tape exposed terminals or keep cells in original retail packaging; limit the number of spare units to airline allowances.
Before travel verify the airline’s written policy and consult IATA/ICAO guidance. For cells falling into the 100–160 Wh band obtain documented airline approval and carry proof of rating; failure to comply may lead to refusal to board or confiscation at security checkpoints.
Power-cell Operated Playthings in Hold Bags: Rules and Recommendations
Recommendation: store spare lithium cells exclusively in cabin baggage; devices containing built-in power packs may be placed in hold bags only after terminals are insulated, the device is fully powered off, and measures are taken to prevent accidental activation.
Hard limits: lithium‑ion (rechargeable) – up to 100 Wh permitted without airline approval; 100–160 Wh require airline approval and are typically limited to two items per passenger; >160 Wh forbidden on passenger flights. Lithium‑metal (non‑rechargeable) – lithium content must not exceed 2 g per cell; cells above that threshold are prohibited.
Preparation checklist before handing an item for hold stowage: remove spare power packs and pack them in the cabin bag; tape exposed terminals; place each spare cell in an individual plastic sleeve; use original packaging where possible; place the device in a rigid container or wrap in cushioning to reduce crush and short‑circuit risk; disable automatic start features and secure power switches.
Documentation and airline procedures: if a device shows a Wh rating above 100, present manufacturer specifications or a label showing Wh at check‑in; obtain airline approval for 100–160 Wh items in writing when required; refuse acceptance if staff request removal of cells from hold stowage.
| Item category | Installed power cells – hold status | Spare cells – where allowed | Practical note |
|---|---|---|---|
| Small consumer electronics (≤100 Wh) | Generally allowed in hold if protected and powered off | Only in cabin baggage | Keep devices protected from impact; remove loose cells |
| Large rechargeable packs (100–160 Wh) | Allowed only with airline approval | Allowed only with airline approval; limited quantity | Get written airline consent before travel |
| Power banks / portable chargers | Prohibited in hold | Must remain in cabin baggage | Label Wh clearly; treat as spare cell |
| Lithium‑metal cells | Subject to lithium content limit (≤2 g) | Same limits apply | Cells above limit are forbidden on passenger aircraft |
When in doubt, ask the airline before travel and keep spares in the cabin bag; for cleaning soft surfaces and straps on play items consult manufacturer instructions or general guides such as how to clean a back scrubber.
Which cell chemistries are permitted in aircraft hold
Recommendation: alkaline and NiMH power cells may be stowed in the aircraft hold either installed in devices or packed as spares; lithium metal (primary) and lithium‑ion (rechargeable) cells face strict limits – spare lithium cells must remain in the cabin and high‑capacity lithium packs require airline approval.
Regulatory limits and practical thresholds
Alkaline and nickel‑metal hydride (NiMH): classified as non‑hazardous for normal consumer sizes by ICAO/IATA and most national regulators; no specific watt‑hour (Wh) caps for typical household sizes. Lithium‑ion (rechargeable): the common threshold is 100 Wh per cell/pack – units ≤100 Wh are generally permitted, units between 100 Wh and 160 Wh require airline approval and are limited in number (typically up to two spare packs), units >160 Wh are prohibited on passenger aircraft. Lithium metal (primary): lithium content must not exceed 2 g per cell for passenger transport; cells above that limit are not allowed.
Handling rules and recommended safeguards
Protect terminals by covering exposed contacts using non‑conductive tape or by keeping cells in original retail packaging; store spare packs in individual plastic pouches or protective cases; ensure installed packs are secured against accidental activation and devices are powered off. Declare any high‑capacity lithium packs to the carrier before travel and verify the carrier’s policy ahead of departure. Do not place loose, unprotected cells in stowed baggage. See also best umbrella stroller for large child.
Lithium watt‑hour and cell/pack limits for aircraft hold transport
Recommendation: Keep spare lithium cells and packs in the passenger cabin; devices containing installed lithium packs may be stored in the aircraft hold only when powered off, terminals insulated, and airline policy allows.
Numeric limits
- Lithium‑ion (rechargeable): ≤100 Wh – allowed in devices and as spare packs in the cabin without airline approval; spare packs must be protected against short circuits. 100–160 Wh – airline approval required; maximum two spare packs per passenger permitted in the cabin. >160 Wh – prohibited on passenger aircraft.
- Lithium‑metal (primary): metallic lithium content ≤2 g per cell – permitted in devices and as spare cells in the cabin; cells exceeding 2 g metallic lithium are prohibited on passenger aircraft.
- Cell/pack counts: spare packs above 100 Wh are limited to two per passenger (approval required). Packs and cells installed in equipment are generally subject to airline restrictions and may count toward per-passenger limits.
Packing and protection rules: power devices off, remove removable packs when feasible, insulate terminals by taping over exposed contacts or using terminal covers, store each spare in original retail packaging or individual plastic sleeves, and notify airline staff if approval was obtained for 100–160 Wh packs at the airline counter. Do not place spare packs or loose cells in the aircraft hold.
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Preparing power-cell playthings for airline hold: removal, terminal insulation and power-switch protection
Remove all removable power cells from any plaything and stow those cells in cabin baggage inside individual non-conductive pouches or their original manufacturer packaging.
Protect terminals by covering exposed contacts using Kapton tape, PVC electrical tape or pre-molded plastic caps; apply two overlapping layers so no metal is exposed; for coin cells place tape across both faces; for cylindrical cells cover both positive nub and negative casing separately.
Place each removed cell in its own resealable plastic bag or hard-sided compartment; prevent contact between terminals of different cells by keeping polarity ends separated; do not stack cells so metal faces touch.
Terminal insulation
Use manufacturer terminal covers when available; substitute heat-shrink tubing sized to cell diameter if caps absent – slide tubing over terminal only, shrink gently using a low-heat source and allow to cool before packing; ensure no conductive material can bridge positive and negative.
Power-switch protection
Set mechanical switches to OFF and immobilize using a cable tie threaded through the toggle or a strip of rigid plastic under the switch; then secure a strip of tape across the actuator so accidental toggling is prevented during handling.
For items featuring non-removable rechargeable cells, render the device incapable of accidental activation: remove external power leads, disable wireless radios, engage any built-in lock function, and insert a non-conductive spacer into the compartment if accessible; place the item inside a rigid case to protect against crushing and impact.
Pack protected cells and items inside a crush-resistant container separated by foam or corrugated dividers; do not place loose cells in pockets or alongside metal tools; retain original cell labels or include a brief declaration when carrier rules require additional information.
Spare cells and power banks: required in-cabin placement and packing procedure
Keep all spare lithium cells and portable power banks in hand baggage; do not stow them in the aircraft hold.
- Lithium‑ion (rechargeable): up to 100 Wh per cell/pack permitted in hand baggage without carrier approval. Packs >100 Wh and ≤160 Wh require airline approval and are normally limited to two units per passenger. Packs >160 Wh are prohibited on passenger aircraft.
- Lithium‑metal (non‑rechargeable): single cells containing ≤2 g elemental lithium are allowed in hand baggage; cells >2 g typically require approval or are not permitted.
- Power banks are classified as spare lithium‑ion packs and follow the same Wh limits and approval rules; they must remain in hand baggage at all times.
- Do not transport damaged, swollen, leaking or modified cells/packs.
- Most carriers accept multiple small packs under 100 Wh; confirm specific carrier limits before travel when transporting many units or any item in the 100–160 Wh range.
How to calculate watt‑hours:
- Wh = V × Ah. Convert mAh to Ah by dividing by 1000. Example: a 3.7 V, 5000 mAh pack → 3.7 × (5000/1000) = 18.5 Wh.
- If only mAh and voltage markings are present, use above formula to determine whether the item falls under the 100 Wh threshold.
Packing steps (follow every item below):
- Remove spare cells/packs from any device; keep installed packs inside the device unless manufacturer or carrier instructions state otherwise.
- Insulate exposed terminals: cover terminals with non‑conductive tape or use original manufacturer packaging designed to separate terminals.
- Place each spare cell/pack in its own plastic bag or pouch to prevent contact between terminals and other metallic objects (keys, coins, chargers).
- For power banks: switch off, fold or remove cables, and cover ports where practical; store in a pouch to avoid accidental activation.
- Label or retain manufacturer information showing Wh or mAh/voltage where possible; keep proof of Wh calculations handy if staff request verification.
- If any pack exceeds 100 Wh or any cell contains >2 g lithium, obtain written airline approval before travel and present that approval at check‑in or gate.
If in doubt about a specific item model or capacity, consult the airline’s hazardous‑goods guidance before arriving at the airport; carry written approval for any permitted items above standard limits.
Where to check airline and country‑specific power‑cell rules before your flight
Obtain written confirmation from the airline’s Dangerous Goods or Special Items unit at least 72 hours before departure: consult the carrier’s official policy page and, if unclear, phone the airline’s ground operations or cargo desk and request email confirmation of acceptance and any required documentation.
Authoritative sources to consult
IATA Dangerous Goods Regulations (latest edition) and ICAO Technical Instructions – primary international standards for transporting lithium metal and lithium‑ion cells; refer to UN numbers UN3090, UN3091, UN3480, UN3481 and Class 9 provisions.
National aviation authorities and security agencies: TSA (USA), EASA (EU), UK CAA, Transport Canada, CASA (Australia), CAAC (China), DGAC (France), JCAB (Japan); review their “dangerous goods” or “restricted articles” pages for country‑specific prohibitions and paperwork requirements.
Individual airport and customs pages at origin, transit and destination – some nations impose import or transit bans that differ from carrier rules; check airport security advisories and customs guidance for prohibited items and declaration procedures.
Practical pre‑flight checklist (72–24 hours prior)
1) Search the airline site for keywords: “dangerous goods”, “restricted articles”, “special baggage”, “lithium ion”, “lithium metal”, “UN3480”, “UN3090”. Save or screenshot the page that applies to your itinerary.
2) If the power cells exceed manufacturer markings or international limits, request written airline approval (email preferable). Do not assume verbal clearance will be honored at the airport.
3) For transits, verify rules for each intermediate state; approval at origin does not guarantee acceptance during transfer.
4) Prepare documentation specified by the carrier: Dangerous Goods Acceptance form, packing declaration, or proof of watt‑hour ratings and cell counts from the manufacturer.
5) At check‑in, present printed approvals and device labeling; if the airline requests special handling or a DG tag, insist on a copy of the tag number or handler reference.
6) For any doubt, contact an airline cargo/DG specialist rather than general reservations; record contact name, time and reference number for future use.
If security flags a plaything power cell: seizure, penalties and immediate safety steps
At the checkpoint follow these exact steps: switch the device off, keep both hands visible, hand over any packaging or labels on request, do not attempt concealment or transfer the item to another passenger, and comply with staff directions.
Immediate actions security staff will take
Screeners will remove the item for manual inspection, open the item only if an owner or authorized agent is present, and isolate the power cell if heat, smoke or deformation is detected. If thermal risk is suspected staff may place the item inside a fire‑retardant container, clear the area, and summon on‑site fire/rescue personnel. A chemical test or visual examination for prohibited chemistries (lithium metal/ion) is routine; if regulators decide the cell poses a hazard it will be rendered unusable or destroyed.
Seizure, fines and post‑incident steps
Prohibited or undeclared power cells are typically confiscated permanently. Administrative penalties vary by country and case severity: small administrative fines often start in the low hundreds of local currency, negligent or deliberate concealment has resulted in penalties in the thousands and, in extreme cases, criminal charges. Expect a written incident form or receipt from the screening agency; request a copy and note the officer’s name and badge number.
Do this after surrendering the item: photograph the device and surrounding packing before handing it over if time permits; collect the incident report number and agency contact details; obtain a written record from the airline or screening authority for any subsequent insurance or reimbursement claim. Recovery of seized hazardous items is rarely permitted; shipping them later requires hazardous‑materials paperwork and airline/shipper acceptance.
If the event causes flight delay or missed connections ask the airline for a formal statement referencing the security seizure to support refund or rebooking claims. For suspected legal exposure seek local legal advice quickly; voluntary cooperation and a clear paper trail reduce the likelihood of escalated enforcement.
