### Could the battery cells shift inside the packaging?
You must include the rated voltage, power, and battery capacity, along with warning labels such as “Do not use continuously for long periods” and “Keep out of reach of children.” For export models, CE and recycling marks are also required; missing any of these can lead to rejection during platform compliance reviews.
Lithium batteries must pass UN38.3 testing, and there are additional requirements for air-shipping complete devices that contain batteries. You must also ensure compliance with CE and FCC standards for the target market; if the plug type or voltage specifications are incorrect, the device won’t even be functional upon arrival.
### How can you prevent scratches on the casing?
### How should you configure the adapters and cables?
Don’t pack the items until you’ve verified all the standards.
Be careful—if a heating element is attached to the casing, heavy pressure can cause it to delaminate, leading to localized overheating during use. Avoid placing heavy objects on the front of the hand warmers when packing, and calculate the maximum stacking height based on the carton’s strength—don’t just guess based on experience.
Rechargeable and plug-in models require different accessories. For rechargeable versions, ensure the cables and plugs match the destination country’s standards. For plug-in versions, the length and specifications of the power cord must be listed on the packing list; missing even one cable could result in the customer returning the entire unit.
Hand warmer casings are often made of ABS plastic or feature a matte finish. If two units are stacked together in a box, they may rub against each other during transit, arriving covered in scratches. Placing each unit in a PE or velvet bag and adding a divider between them costs very little but significantly improves the product’s appearance.
Hand warmers are highly seasonal products. Once October arrives, a surge of orders often forces factories to rush production, which is when packaging errors are most likely to occur. Most buyer inquiries tend to focus on a few specific concerns.
### Are the heating elements susceptible to pressure damage?
### What must be labeled on the packaging?
### What else should be checked before export?
Yes, they are. Most hand warmers are rechargeable; if a unit is dropped or subjected to pressure, the casing might remain intact, but the internal battery cell could become damaged or start to swell. The internal packaging (insert) must hold the device firmly in place so it cannot shift. Additionally, the outer carton should be marked with “Do Not Press” and “Do Not Drop” labels.
