In today’s era of rapid global technological development, batteries, as the key power support for numerous electronic devices and new energy products, have an ever – expanding application scope and an increasing transportation demand. However, battery transportation faces many challenges, among which the high rejection rate is particularly prominent. According to authoritative logistics industry data, in recent years, the proportion of battery transportation rejections due to non – compliant packaging and operations has been continuously rising. In some busy logistics nodes, this proportion has even approached 40%. This not only brings economic losses to enterprises but also affects the stability of the supply chain. It can be said that “compliant packaging is the key”, and compliant packaging and correct operations are the core guarantees for the smooth transportation of batteries. This article will deeply analyze 16 common problems in battery transportation packaging and operations from beginner to expert levels, creating a practical operation guide for practitioners to achieve the goal of “one – time packaging, smooth transportation throughout the journey”.

Part One: Basic Knowledge and Packaging Containers (Beginner’s Guide)

Core Question: What to use for packaging? What are the strict requirements?

1. Basic Requirements for Battery Packaging and the Concept of “UN Boxes”

• Question: What are the basic requirements for battery packaging?
  • Answer: The robustness requirement of battery transportation packaging is extremely crucial. Taking the well – known international logistics transportation standards as an example, the outer packaging needs to have sufficient strength to withstand various impacts, squeezes, and vibrations that may be encountered during transportation. For instance, during long – distance sea transportation, the goods may experience wave bumps and container stacking, which requires the packaging to protect the batteries from damage. Achieving a certain IP level is an important indicator to measure the protective ability of the packaging, which can effectively prevent dust, moisture, etc. from entering the packaging and ensure the stable performance of the batteries. Anti – short – circuit measures are also indispensable. Once the positive and negative electrodes of the battery are short – circuited, it may cause serious consequences such as overheating, fire, or even explosion. Common anti – short – circuit methods include using insulating materials for isolation, such as insulating plastic sheets and rubber gaskets. In addition, preventing accidental activation is also an important part of ensuring transportation safety. The batteries in some small electronic devices may be accidentally activated due to vibrations and collisions during transportation, resulting in problems such as overheating and damage. To avoid this, special designs or devices can be used, such as setting a transportation lock or using a switch that is not easily triggered.
• Question: What is a “UN box”, what does its marking mean, and in what situations must it be used?
  • Answer: A “UN box” is a dangerous goods packaging that has passed the United Nations performance test, representing an internationally recognized safety standard. The codes in the UN marking contain a wealth of information. For example, 4G usually represents a fiberboard box, X means it is applicable to all dangerous goods, and 30 represents the maximum allowable weight. Different code combinations correspond to different packaging types, application scopes, and performance requirements. When transporting specific types of batteries such as PI965 pure lithium batteries, UN boxes must be used. This is because pure lithium batteries have a high energy density and potential hazards, and UN boxes have undergone strict testing and certification, providing more reliable protection. Once, a small battery production enterprise, in order to save costs, used ordinary packaging when transporting PI965 pure lithium batteries. As a result, it was detected during customs inspection, the goods were seized, and the enterprise not only faced high fines but also lost important customer orders, suffering huge economic losses.

2. Battery Stacking and Pallet Loading Specifications

• Question: What are the requirements for battery stacking in the 2025 new regulations, and what are the restrictions on the number of stacking layers on a pallet in daily operations?
  • Answer: The 2025 new regulations put forward more stringent requirements for battery stacking. For example, PI967 needs to be able to withstand a stacking pressure of 3 meters high. This requirement is based on the consideration of the stability and safety of the goods during transportation. The stacking test is an important means to verify whether the packaging meets the requirements. By simulating the actual stacking situation, it tests the compressive capacity and structural stability of the packaging when bearing a certain weight. In daily operations, the number of stacking layers on a pallet needs to be determined according to the load – bearing capacity of the packaging and the nature of the goods. For small batteries, since their weight is relatively light, a pallet may be able to stack 5 – 6 layers; while for large power batteries, due to their large weight, it may only be possible to stack 2 – 3 layers. If the number of stacking layers is too large, it may cause the bottom packaging to bear excessive pressure and be damaged, thus affecting the safe transportation of the batteries. For example, a logistics enterprise did not operate in strict accordance with the stacking requirements in a transportation. They stacked too many batteries on a single pallet. As a result, the bottom packaging broke during transportation, and the batteries were damaged, causing serious economic losses.
• Question: What are the specifications for pallet loading?
  • Answer: Pallet loading specifications cover multiple aspects. It is a basic requirement that the product labels face outward, which facilitates the quick identification of goods information during transportation and improves the efficiency of logistics operations. The pallet wrapping film should meet the requirements. The purpose of wrapping the film is to fix the goods and prevent them from moving or collapsing during transportation. Generally, the wrapping film should be tight and uniform to ensure the stability of the goods on the pallet. There is also a recommended maximum height for pallet loading, usually not exceeding the width of the pallet or 1.5 meters. This is to ensure the stability of the center of gravity of the goods during transportation and avoid collapse due to an overly high center of gravity. Once, due to non – standard pallet wrapping, the goods loosened during transportation, and some batteries fell off the pallet, resulting in goods damage and transportation delays.

Part Two: Core Operation Details (Protection Guide)

Core Question: How to operate to ensure safety?

3. The Pros and Cons of Positive Pole Protection

• Question: What are the methods for protecting the positive and negative poles, and what are their advantages and disadvantages?
  • Answer: Common methods for protecting the positive and negative poles include using insulating gaskets and tape wrapping. Although ordinary transparent tape wrapping is easy to operate, it has obvious drawbacks. In a high – temperature environment, the tape may leave residual glue, which affects the performance of the battery. Moreover, the tape may fall off during long – distance transportation due to vibration and friction, resulting in a short – circuit between the positive and negative poles of the battery. In contrast, using insulating caps or insulating tape to wrap the electrodes is a more reliable method. Insulating caps can fit tightly on the electrodes, providing good insulation. Insulating tape has good adhesion and insulation properties, effectively preventing short – circuits. For example, a company used ordinary transparent tape to wrap the electrodes when transporting a batch of batteries. When passing through a high – temperature area, the tape fell off, causing a short – circuit in some batteries and triggering a fire, resulting in serious casualties and property losses.
• Question: If the insulating sheet falls off during transportation, what countermeasures can be taken?
  • Answer: For the problem of the insulating sheet falling off, various secondary reinforcement measures can be taken. Using a heat – shrinkable film to wrap the entire battery is an effective method. The heat – shrinkable film has good shrinkage and sealing properties, which can tightly wrap the battery and prevent the insulating sheet from falling off. Folding the electrode tabs and then physically fixing them is also a feasible way. By folding the electrode tabs and using clips or tape for fixation, the stability of the insulating sheet can be increased. Once, in a batch of battery transportation, due to the insulating sheet falling off, some batteries had short – circuit problems. The company promptly used heat – shrinkable film to wrap the batteries, effectively solving the problem of the insulating sheet falling off and ensuring the safe transportation of the goods.

4. Special Treatment of Built – in Batteries

• Question: For devices with switches, is simply “turning off” enough?
  • Answer: Simply “turning off” is far from enough. For devices with switches, measures to prevent accidental activation must be taken to avoid the battery being accidentally activated during transportation and reduce safety risks. Setting a transportation mode is a common method. By setting the device to the transportation mode, the output and functions of the battery can be restricted, reducing the possibility of accidental activation. Disconnecting the internal connection is also an effective measure. By disconnecting the connection between the battery and other components of the device, the battery can be completely prevented from being accidentally triggered during transportation. Attaching a warning label can remind operators to protect the device during transportation and avoid misoperation. For example, a certain brand of smartwatch was in transportation. Although it was turned off, without setting the transportation mode, it was accidentally activated during bumpy transportation, causing the battery to overheat and damaging the device, bringing economic losses to the company.

5. Fixing Solutions for Large – scale Power Batteries

• Question: How to fix power batteries weighing hundreds of kilograms? Is it compliant to use straps for fixation?
  • Answer: Large – scale power batteries weighing hundreds of kilograms require special fixing solutions. Whether using straps for fixation is compliant needs to be analyzed specifically. Generally speaking, strap fixation can be used as an auxiliary means, but it cannot rely solely on straps. Usually, custom wooden pallets or slatted crates are needed, and bolts are used to fix the battery base to provide more stable support. At the same time, the weight distribution and center – of – gravity offset of the battery need to be considered to ensure the stability of the battery during transportation. Once, a vehicle transporting large – scale power batteries had the batteries shaking during driving due to insecure strap fixation, which almost caused a traffic accident. Later, the company adopted the method of custom wooden pallets and bolt fixation, effectively solving the battery – fixing problem and ensuring transportation safety.

Part Three: Signs, Labels, and Documents (Visual Guide)

Core Question: What to stick? How to stick? What documents to carry?

6. Format and Size of “Lithium Battery Markings”

• Question: What are the requirements for the format and size of “lithium battery markings”, and what information must be displayed on the markings?
  • Answer: The Class 9 dangerous goods labels and “Cargo Aircraft Only” labels have clear size requirements. For example, the minimum side length of the diamond – shaped label is 100mm or 250mm. These size requirements are to ensure that the labels are clearly visible from a long distance and at different angles, facilitating identification and management. The markings must display a contact phone number so that relevant personnel can be contacted in time in case of an emergency. For example, in an air transportation, a batch of lithium – battery goods had an abnormal situation. Thanks to the clearly visible contact phone number on the label, the airport staff was able to contact the shipper in time and take corresponding measures, avoiding an accident.
• Question: What are the requirements for the posting order and position of the labels?
  • Answer: When there are dangerous goods labels, shipping marks, address labels, and QR codes on the outer box at the same time, the posting order and position should be reasonably arranged. The dangerous goods labels must be exposed and not blocked to ensure their visibility and effectiveness. Generally speaking, the dangerous goods labels should be posted in a prominent position, such as the front or side of the outer box. The shipping marks and address labels should be kept at a certain distance from the dangerous goods labels to avoid mutual blocking. The QR code can be posted in other positions on the outer box, but it also needs to be clearly readable. For example, a company posted the labels in such a way that the dangerous goods labels were blocked by other labels. During customs inspection, they were required to re – post the labels, which affected the customs clearance speed of the goods.

7. Labeling Strategies for Mixed – loaded Goods

• Question: If there are both lithium batteries and non – powered electronic products on a pallet, how should the labels be stuck?
  • Answer: Corresponding labels should be stuck on the outer boxes respectively. A “Lithium Battery” sign should be stuck on the entire pallet. If there are multiple dangerous characteristics, multiple labels may need to be stuck at the same time to clearly identify the dangerous nature of the goods and facilitate transportation management and identification. For example, if there are both lithium batteries and electronic products with magnetism on a pallet, in addition to the “Lithium Battery” sign, a magnetic substance warning label also needs to be stuck. Once, a batch of mixed – loaded goods had non – standard label posting, which led to misclassification of the goods during transportation, increasing transportation costs and risks.

8. The “Color Mystery” of Adhesive Tapes

• Question: What are the requirements for the color of the outer – packaging adhesive tape?
  • Answer: The outer packaging usually requires the use of transparent or white adhesive tape to facilitate the inspection of whether the box has been tampered with. In some express delivery channels, warning – colored tapes such as yellow and red are prohibited to avoid confusion with dangerous goods labels. For example, a company was using yellow tape to seal the box and was rejected by the express delivery channel, being required to replace it with transparent tape. This is because warning – colored tapes such as yellow and red may make operators mistakenly think that the goods have a higher degree of danger, thus increasing the difficulty of management and transportation.

Part Four: Testing Standards and Compliance Verification (Verification Guide)

Core Question: How to prove that my packaging is qualified?

9. In – depth Interpretation of the “1.2 – meter Drop Test”

• Question: What is the origin and passing standard of the “1.2 – meter drop test”?
  • Answer: The “1.2 – meter drop test” comes from packaging – type tests. Its purpose is to simulate the possible drop situations of batteries during transportation and test the protective performance of the packaging. The passing standard after the test is that the battery has no leakage, no damage, and the packaging has no damage that exposes the inner parts. Once, a company’s battery packaging failed the drop test, resulting in damage to the goods during actual transportation. The company had to repackage and re – transport the goods, increasing costs and time. This also reminds companies to fully consider the anti – drop performance of the packaging when designing and selecting packaging.
• Question: What are the requirements for the test report? Does it have to be done by a third – party? Does it need to be carried with the goods?
  • Answer: Usually, customs or airlines recognize the test reports of third – party CNAS laboratories. Third – party CNAS laboratories have professional testing equipment and technical personnel, which can provide accurate and reliable test results. The test report generally does not need the original to be carried with the goods, but the data needs to be retained for future reference, and the conclusion of the transportation appraisal report is based on this test report. For example, a company did not provide an effective test report when transporting batteries, and the goods were detained at the customs. After communication and supplementing the report, the goods were released. This shows the importance of the test report for battery transportation, and companies should pay attention to obtaining and preserving the test report.

10. The “Critical Line” of Environmental Temperature

• Question: What impact does the high temperature in the cabin in summer have on battery transportation? What are the restrictions on SOC in the new regulations?
  • Answer: The high temperature in the cabin in summer is very dangerous for batteries and may lead to thermal runaway. High temperature will accelerate the chemical reactions inside the battery, causing the battery temperature to rise. When the temperature exceeds a certain limit, it may trigger thermal runaway, leading to serious consequences such as battery fire and explosion. The new regulations limit the SOC (State of Charge) to 30%, which is a key measure to prevent thermal runaway. A lower state of charge can reduce the energy storage inside the battery and lower the risk of thermal runaway. During transportation, the environmental temperature should be closely monitored to ensure that the batteries are transported within a safe temperature range. Once, a batch of batteries was being transported in summer. Due to the high temperature in the cabin, some batteries experienced thermal runaway, triggering a fire and causing serious losses. Companies should take effective cooling measures, such as using heat – insulating materials and installing air – conditioning equipment, to ensure the safety of battery transportation.

Part Five: Transportation Modes and Special Regulations (Difference Guide)

Core Question: What are the differences among sea, air, rail, and road transportation? Are there any shortcuts?

11. Packaging Differences between Sea and Air Transportation

• Question: What are the packaging differences between sea and air transportation?
  • Answer: For the same batch of goods, there are obvious packaging differences between sea and air transportation. Generally, air transportation has stricter requirements. For example, the inner packaging is more strictly regulated, UN boxes must be used, and labels need to be closely attached. This is because during air transportation, the goods are subject to more complex factors such as vibration and air – pressure changes, thus demanding higher – standard packaging. Sea transportation is relatively more flexible for oversized items, but the label size requirements are larger, such as a 250mm diamond – shaped label. For instance, a company chose air transportation for a batch of batteries. However, since the packaging did not meet the air – transportation requirements, the goods were returned and had to be repackaged before being transported, which increased the transportation cost and time. When choosing a transportation mode, companies should fully consider the differences in packaging requirements and make packaging preparations in advance.

12. Packaging Simplification for “Limited Quantity” and “Excepted Quantity”

• Question: What is “Limited Quantity” transportation, and what are the packaging – simplification benefits?
  • Answer: “Limited Quantity” transportation refers to the transportation of batteries within a certain quantity range, which can enjoy the policy of packaging simplification. For example, large – sized dangerous – goods labels do not need to be pasted; instead, an “LTD QTY” label can be used, and combination packaging can be adopted. This can reduce packaging costs and improve transportation efficiency. A company saved on packaging materials and labor costs and shortened the packaging time, thus increasing the transportation speed of the goods when transporting a small quantity of batteries using “Limited Quantity” transportation.
• Question: What is “Excepted Quantity,” and what are the characteristics of its packaging?
  • Answer: “Excepted Quantity” usually applies to batteries with lower risks or small – capacity batteries. Their packaging can be more simplified, but it must be printed with the “Exceptions” mark. This packaging simplification can reduce the company’s packaging costs and time and improve the flexibility of transportation. For example, a company simplified the packaging process and improved transportation efficiency when transporting some small button batteries using “Excepted Quantity” packaging.

Part Six: Common Misunderstandings and Frequently – Encountered Pitfalls (Practical Guide)

13. Misunderstandings about Battery Conditions: New/Used/Damaged

• Question: What are the requirements for the condition of batteries during transportation?
  • Answer: Only non – damaged batteries can be used, and it is strictly prohibited to transport recycled or damaged batteries. Damaged batteries pose greater safety risks and may lead to transportation accidents. Once, a company transported a batch of recycled batteries, and a battery fire occurred during transportation, resulting in serious consequences. Companies should establish a strict battery – inspection system to ensure that the transported batteries meet safety requirements.

14. Validity of Contact Numbers

• Question: What are the requirements for the emergency – contact phone number on the outer box?
  • Answer: The emergency – contact phone number on the outer box must be kept open 24 hours a day, and the person answering the phone should be able to provide technical information. In this way, in case of an emergency during transportation, relevant personnel can be contacted in time to take corresponding measures. For example, when a batch of batteries had an abnormal situation during transportation, the problem could not be solved in time because the emergency – contact phone number could not be reached, resulting in the loss of the goods. Companies should ensure the validity of the emergency – contact phone number and train relevant personnel to provide accurate technical information.

15. Interference of Magnetic Substances

• Question: What should be noted about the magnetism of products with built – in batteries?
  • Answer: For products with built – in batteries, attention should be paid to whether the magnetism of the device itself exceeds the standard. Devices such as audio motors may have the problem of excessive magnetism. If the magnetism exceeds the standard, demagnetization should be carried out or a magnetic – substance label should be pasted to avoid interference with other devices or transportation tools. Once, a batch of audio devices with built – in batteries interfered with the aircraft’s electronic equipment during transportation due to excessive magnetism, resulting in a flight delay. Companies should strengthen the detection and control of magnetic substances during the production and transportation of products with built – in batteries.

16. Taboos of Mixing Different Battery Types

• Question: What are the taboos of mixing different battery types?
  • Answer: Lithium – ion and lithium – metal batteries are strictly prohibited from being mixed in one outer packaging. Different types of batteries have different chemical properties and dangerous characteristics, and mixing them may lead to safety accidents. For example, a company mixed lithium – ion and lithium – metal batteries together during transportation. A chemical reaction occurred during transportation, causing the batteries to explode. Companies should strictly abide by the taboos of mixing battery types to ensure transportation safety.

Conclusion

Compliant packaging is the bottom – line for battery transportation, and details determine success or failure. Before shipping, enterprises should conduct self – inspections using the checklist provided in this article. They can also seek pre – review services from professional dangerous – goods packaging testing institutions to ensure the safety and compliance of battery transportation. Only by taking good care of every detail in packaging and operations can the rejection rate of battery transportation be effectively reduced, and the smooth transportation of goods be guaranteed.