Air Freight for Lithium Batteries in India requires more preparation than standard air cargo because lithium batteries are classified as dangerous goods in many shipment configurations. Before an airline accepts the consignment, the shipper must correctly identify the battery chemistry, UN number, Watt-hour rating, packing instruction, State of Charge requirement and the type of equipment in which the battery is packed or installed. For lithium-ion batteries, the most common classifications are UN3480 for batteries shipped separately and UN3481 for batteries packed with or contained in equipment. The most frequently used packing instructions are PI965, PI966 and PI967. The rule applicable to the shipment depends on whether the battery is moving alone, alongside equipment or installed inside equipment. The 2026 regulations have made pre-shipment planning even more important. In particular, the maximum 30% State of Charge requirement has become more relevant for certain lithium-ion batteries packed with equipment. Importers and exporters therefore need to confirm technical compliance before cargo reaches the airport. For most businesses, the correct sequence is not to first ask for an air freight rate. The better sequence is to verify battery classification, documentation, packing and airline acceptance first, and then finalize the routing and commercial quotation. Why Lithium Battery Air Freight Requires More Planning Lithium batteries are now part of almost every major industrial and consumer supply chain. They are used in electric vehicles, consumer electronics, industrial machinery, telecom equipment, medical devices, power tools, solar systems, battery energy storage systems and mobility products. This has increased the need for lithium battery air cargo, especially where delivery time matters. However, air transport creates stricter safety requirements because batteries can generate heat, short circuit or enter thermal runaway if damaged, defective or improperly packed. Unlike general cargo, a lithium battery shipment cannot always be accepted simply because the cargo is packed and the commercial invoice is ready. The airline must be satisfied that the battery has been correctly classified and that the shipper has followed the applicable dangerous goods requirements. For example, a shipment may be commercially ready on Monday and scheduled for uplift on Tuesday. If the UN38.3 information is incomplete or the State of Charge is above the allowable limit, the shipment may remain at the origin for another 1 to 3 days while the issue is corrected. The commercial impact can be much greater than the freight difference between two airlines. A missed flight can lead to airport storage, rebooking cost, rehandling charges and a delayed customer delivery. This is why lithium battery air freight should be planned as a compliance-driven shipment, not as normal cargo with an additional label. Lithium Battery Classification – UN3480, UN3481, UN3090 and UN3091 Correct classification is the foundation of the entire shipment. Lithium-ion batteries are rechargeable and are commonly found in EV components, laptops, mobile devices, telecom equipment, industrial systems and energy storage products. Lithium metal batteries are generally non-rechargeable and have separate UN numbers and packing requirements. For air cargo, the most common lithium-ion classifications are UN3480 and UN3481. Battery Configuration UN Number Packing Instruction Typical Treatment Lithium-ion batteries shipped alone UN3480 PI965 Standalone battery cargo Lithium-ion batteries packed with equipment UN3481 PI966 Battery packed alongside equipment Lithium-ion batteries contained in equipment UN3481 PI967 Battery installed in equipment Lithium metal batteries shipped alone UN3090 PI968 Standalone lithium metal battery Lithium metal batteries packed with equipment UN3091 PI969 Battery packed with equipment Lithium metal batteries contained in equipment UN3091 PI970 Battery installed in equipment The physical battery may be exactly the same in two shipments, but the regulatory treatment can change depending on how it is presented for transport. For example, a lithium-ion battery sent separately as a spare may fall under UN3480 and PI965. The same battery packed in the same box as the equipment may fall under UN3481 and PI966. If the battery is installed inside the machine, PI967 may apply. Two important technical thresholds are 20 Wh per cell and 100 Wh per battery. These figures help determine whether a battery can move under a smaller battery provision or whether more stringent packing requirements apply. This is why a freight forwarder should request technical data before providing a final acceptance decision. A description such as “battery parts” or “electronic batteries” is not sufficient for DG planning. 2026 Lithium Battery Air Freight Rules The 2026 dangerous goods framework is particularly important for companies moving lithium batteries internationally. Air cargo shipments must comply with applicable international dangerous goods requirements as well as airline-specific restrictions. In India, dangerous goods transport by air is covered under the Aircraft (Carriage of Dangerous Goods) Rules, 2026. These rules apply to operators, shippers and agents involved in dangerous goods movement to, from and within India. For practical shipment planning, compliance normally involves several layers. The battery must first meet the technical transport requirements. The shipment must then comply with the relevant packing instruction. After that, the selected airline must confirm that it is willing to carry that particular battery configuration on the proposed aircraft and route. The compliance flow can be understood as: Battery classification – packing instruction – State of Charge – packaging – marking and labelling – DG declaration – airline variation check – cargo acceptance. Each of these stages can create a delay if handled after cargo reaches the airport. For businesses using air freight regularly, the most efficient approach is to prepare a standard battery compliance file containing the technical information required for repeat shipments. This can reduce repetitive clarification between the shipper, forwarder and airline. UN38.3 Test Summary – Why It Matters UN38.3 is one of the most important technical requirements in lithium battery logistics. Applicable lithium cells and batteries generally need to have successfully passed the transport tests under Part III, Subsection 38.3 of the UN Manual of Tests and Criteria before they can be offered for normal transport. These tests simulate conditions a battery may experience during transportation, including altitude, thermal cycling, vibration, shock, external short circuit and other safety conditions. For manufacturers and distributors, the relevant UN38.3 test summary should be available for applicable battery models. Importers should ideally obtain this information during the procurement stage rather than waiting until shipment booking. A common mistake is assuming that an MSDS or SDS is the same as a UN38.3 test summary. It is not. An SDS describes safety and chemical information. A UN38.3 test summary demonstrates that the battery design has completed the applicable transport safety testing. Both documents may be useful, but they serve different purposes. When an importer is sourcing batteries from China, South Korea, Europe or another manufacturing hub, requesting the UN38.3 documentation early can prevent several days of delay at origin. 30% State of Charge Requirement in 2026 State of Charge has become one of the most closely checked parts of lithium battery air freight. For UN3480 batteries shipped separately under PI965, lithium-ion batteries are generally required to be offered for transport at no more than 30% of their rated capacity. The 2026 rules also expanded the relevance of this requirement for batteries packed with equipment. For certain PI966 Section I shipments, the battery must generally be offered at a maximum 30% State of Charge. Similar restrictions also apply to relevant Section II batteries above 2.7 Wh. This matters because batteries may leave the factory at a significantly higher charge level for testing, quality control or customer convenience. If a shipment is presented at 60%, 80% or 100% charge when a 30% maximum applies, it can create an acceptance problem. The battery may need to be discharged, documentation corrected or the shipment reconfigured before an airline will accept it. For procurement teams, the practical solution is to communicate the shipping requirement to the supplier before production dispatch. State of Charge should therefore be treated as a shipping specification, not only as a technical battery specification. PI965, PI966 and PI967 – How Packing Rules Change Packing instructions control how lithium-ion batteries are presented for air transport. PI965 generally applies to lithium-ion batteries shipped by themselves. PI966 applies when batteries are packed with equipment. PI967 applies when batteries are contained inside the equipment. For standalone batteries under PI965 Section IA, passenger aircraft carriage is generally prohibited. Cargo Aircraft Only movement may allow up to 35 kg net battery weight per package, subject to the applicable provisions. For certain smaller batteries under PI965 Section IB, the Cargo Aircraft Only package limit is typically 10 kg. For batteries packed with equipment under PI966 Section I, passenger aircraft limits can be much lower than cargo aircraft limits. A common example is 5 kg on passenger aircraft and up to 35 kg on Cargo Aircraft Only operations, depending on the applicable provision. Packing requirements are not limited to using a strong box. The battery must also be protected against short circuit, movement and damage during transport. In certain cases, packaging performance may involve a 1.2 metre drop test and 3 metre stacking performance, depending on the applicable packing section. For an exporter, this means the packaging supplier and logistics team should understand the DG classification before final packing begins. Repacking 20 or 30 cartons after airport rejection can easily turn a one-day export process into a 2 to 4 day delay. Marking and Labelling Requirements Lithium battery marking is another area where small errors create disproportionately large delays. Depending on the classification and packing instruction, a package may require a lithium battery mark, Class 9 lithium battery hazard label, Cargo Aircraft Only label, UN number, proper shipping name and other shipment information. A commonly used lithium battery mark measures 100 mm x 100 mm. In certain situations where package dimensions do not permit the standard size, a reduced 100 mm x 70 mm mark may be allowed. The exact marking requirement depends on the shipment configuration. This is important because companies sometimes assume that one standard lithium battery label can be used on all battery shipments. That approach can create compliance problems because PI965, PI966 and PI967 do not always have identical marking and documentation requirements. The correct label must also be visible, durable and placed correctly on the outer packaging. Any mismatch between the declaration, label and UN number can trigger rejection during the dangerous goods acceptance check. How Airline DG Acceptance Works in India Airline acceptance is one of the most important operational stages in Lithium Battery Air Freight India. IATA compliance does not guarantee that every airline will carry the shipment. Individual carriers are allowed to apply operator variations that may be more restrictive than the basic regulations. Some airlines may accept one battery configuration but reject another. Some may accept certain quantities only on Cargo Aircraft Only services. Aircraft type also matters. A route operated using a freighter may accept cargo that cannot move on a passenger aircraft. Similarly, a routing that involves a connecting carrier may require the shipment to meet the acceptance policy of more than one airline. This is why lithium battery bookings should not be treated as normal general cargo bookings. The better sequence is: An airline may also ask for additional emergency contact information, technical clarification or packaging evidence before confirming the booking. For regular importers and exporters, maintaining an airline acceptance matrix for common routes can save significant booking time. Step-by-Step Lithium Battery Air Freight Process in India A well-planned lithium battery shipment usually starts several days before airport delivery. The first stage is data collection. The shipper or importer provides battery chemistry, model number, cell rating, battery Watt-hour rating, battery weight, total shipment weight, number of packages, packing configuration and UN38.3 information. The freight forwarder then identifies the likely UN number and packing instruction. At this stage, the shipment is reviewed to determine whether it can move on a passenger aircraft or requires Cargo Aircraft Only service. The next stage is packing and documentation. State of Charge is checked where applicable, batteries are protected against short circuit and movement, outer packaging is finalized and the correct marks and labels are applied. The airline or DG desk then reviews the shipment for acceptance. Only after the carrier’s conditions are satisfied should the booking and space confirmation be treated as firm. Cargo then moves to the airport terminal for security screening, DG inspection and export customs clearance. After uplift, the shipment may move directly or through one or more hubs. At the destination airport, the cargo enters import customs clearance, terminal handling and final delivery. Lithium Battery Air Freight Process Stage Main Requirement Approximate Planning Time Main Risk Classification review UN number and battery specification Same day Wrong classification DG document review UN38.3, Wh, SoC 4-24 hours Missing technical data Packing preparation PI965, PI966 or PI967 4-24 hours Repacking Airline DG approval Operator acceptance 1-2 working days Carrier rejection Airport acceptance Labels and declaration Same day DG rejection Export customs Shipping Bill and documents Same day to 1 day Customs query Air transit Direct or connecting flight 1-3 days Missed connection Import customs Bill of Entry and assessment 1-2 days typical Compliance delay Final delivery Terminal release and trucking Same day to 1 day Storage delay The timeline is indicative and can vary by route, airline, battery type and airport. Documents Required for Lithium Battery Air Freight Lithium battery air cargo usually involves two documentation layers. The first is the commercial and customs layer. This includes documents used for export, import and valuation. The second is the dangerous goods layer, which provides technical and safety information required for airline acceptance. For a typical shipment, the importer or exporter may need a commercial invoice, packing list, Air Waybill, IEC details, customs declaration, UN38.3 test summary, battery specification, State of Charge information and Shipper’s Declaration for Dangerous Goods where applicable. Documentation Table Document Purpose Risk if Missing or Wrong Commercial Invoice Customs valuation Assessment delay Packing List Weight and package details Mismatch during examination Air Waybill Transport information Airline discrepancy IEC Import/export identification Customs filing issue Bill of Entry Import clearance Cargo release delay UN38.3 Test Summary Transport test evidence Airline rejection Battery Specification Confirms chemistry and Wh Wrong DG classification SoC Confirmation Confirms charge level DG acceptance issue DG Declaration Dangerous goods declaration Shipment rejection Marks and Labels Hazard communication Relabelling or repacking The documents should be internally consistent. If the invoice says one model, the packing list shows another and the battery test summary refers to a third model number, the shipment can attract additional questions. Customs Clearance for Lithium Battery Air Cargo in India Customs clearance is one of the most important parts of total transit planning. Air freight may move between countries within hours, but the complete door-to-door shipment still depends on customs assessment, examination where selected, duty payment, other regulatory requirements and terminal release. India’s National Time Release Study reported an average import release time at Air Cargo Complexes of approximately 39 hours 20 minutes in 2025. This was an improvement from approximately 41 hours 30 minutes in 2024 and 44 hours 16 minutes in 2023. The figures show a positive trend, but they also highlight an important point for supply chain teams. A 7-hour flight does not mean a 7-hour supply chain. Another important number is advance filing. Air Cargo Complex shipments with advance-filed Bills of Entry recorded an average release time of around 29 hours 21 minutes, while late-filed Bills of Entry took about 53 hours 24 minutes on average. That is a difference of almost 24 hours. For an urgent battery consignment, preparing customs documents before flight arrival can therefore save close to one full working day. Why Documentation Errors Increase Customs Time Customs documentation problems can have a measurable impact on release time. In the National Time Release Study, around 27% of Air Cargo Complex Bills of Entry involved amendments during the study period. Air cargo entries involving amendments recorded an average release time of about 49 hours 53 minutes, compared with the overall average of 39 hours 20 minutes. This means a documentation correction can add several hours to clearance even before considering terminal handling or airline storage. Common problems include wrong HS codes, incomplete product descriptions, incorrect quantities, inconsistent weights, valuation differences or a mismatch between the invoice and packing list. For lithium batteries, the technical description also matters. The customs description should accurately reflect the product rather than use vague descriptions such as “electronic item” or “battery product”. A well-prepared import file should be ready before aircraft arrival. How Much Does Lithium Battery Air Freight Cost in India? There is no single standard rate for lithium battery air freight. The air freight rate can vary significantly depending on the route, carrier, chargeable weight, battery classification, aircraft type, available DG space and origin airport. A 100 kg lithium battery consignment from China to India and a 100 kg consignment from Germany to India may have completely different air freight rates, even if the battery classification is the same. The cost should therefore be broken down into several components. The total logistics cost can include origin pickup, dangerous goods checking, packing, UN-certified packaging if required, labelling, airline freight, fuel surcharge, security surcharge, terminal handling, customs clearance, storage and domestic delivery. At Mumbai Airport, published 2026 cargo tariffs provide useful real examples of additional DG-related costs. A dangerous goods pre-check can be around ₹1,500 per UN number, while a DG rejection charge can be around ₹2,500 per UN number. Marking and labelling can cost around ₹1,430 per AWB, while X-ray screening can be charged at approximately ₹4.50 per kg, subject to a minimum charge. These are airport-specific charges, not standard India-wide prices, but they show why total logistics cost matters more than basic air freight alone. Chargeable Weight Can Increase Air Freight Cost Air freight is usually calculated on chargeable weight rather than simply actual weight. The airline compares the actual gross weight with the volumetric weight and generally charges the higher figure. A commonly used air freight conversion is: Length x Width x Height in cm ÷ 6,000 For example, a shipment measuring 120 cm x 100 cm x 100 cm has … Continue reading Air Freight for Lithium Batteries in India: DG Acceptance, Packing and Transit Planning