Truck Battery Shipping & Transport Rules¶
TL;DR — Lead-acid batteries are classified dangerous goods: UN2794 for wet flooded, UN2800 for non-spillable AGM/VRLA. A non-spillable battery must pass an 88 kPa (~0.87 atm, ~9 m water-depth) pressure-differential test. They ship by sea under the IMDG Code; wet UN2794 is effectively restricted from passenger air freight.
Key Takeaways¶
- UN2794 vs UN2800 decides your freight cost — wet flooded is UN2794; non-spillable AGM/VRLA is UN2800 and exempt from some wet-battery rules, so classification is a cost line, not a formality.
- "Non-spillable" is a test result, not a label — UN2800 requires passing vibration and pressure-differential tests proving no leak even with a cracked case; never claim it without the manufacturer's confirmation.
- Sea freight under the IMDG Code is the standard — and for wet UN2794 it is close to the only option — passenger-air carriage is restricted, so batteries ship with terminals protected against short circuit, backed by invoice, packing list, MSDS and a DGD where required.
- Exports run on 1 × 20ft containers and 20–45 day lead times — a 70+ country network means predictable logistics, but only if classification and documents are right up front.
- AGM's export advantage is real, not cosmetic — the UN2800 exemption makes AGM materially simpler and cheaper to ship, a key reason it suits export programs.
Dangerous Goods Classification¶
Truck starting batteries are lead-acid, which the UN system classifies as dangerous goods:
| UN number | Description | Typical battery |
|---|---|---|
| UN2794 | Batteries, wet, filled with acid | Standard flooded SLI |
| UN2800 | Batteries, wet, non-spillable | AGM / VRLA (when tests pass) |
Why it matters
UN2800 (non-spillable) batteries are simpler and cheaper to ship because they are exempt from some of the more onerous wet-battery requirements — one reason AGM is attractive for export programs.
What "Non-Spillable" Actually Means¶
A battery qualifies as UN2800 only if it passes a vibration and pressure-differential test proving the electrolyte will not leak even if the case is cracked. AGM and VRLA batteries meet this because the electrolyte is absorbed in the glass mat, not free-flowing. The pressure-differential test is a hard number, not a hand-wave: the battery must withstand a differential of at least 88 kPa — about 0.87 atm, or the pressure at roughly 9 m of water depth — without leaking. That is what separates a genuinely non-spillable AGM/VRLA battery from a flooded battery that merely has a tight cap. This is not a label any battery can claim — it is a test result, so confirm the classification with your manufacturer before declaring it on shipping documents.
How Truck Batteries Ship¶
- Sea freight — the standard method for bulk battery exports, governed by the IMDG Code
- Packing — batteries are secured against short circuits and movement, with terminals protected
- Documentation — commercial invoice, packing list, MSDS, and a dangerous-goods declaration where required
Air freight is effectively off the table for wet lead-acid: IATA restricts UN2794 to cargo aircraft only, with strict state-of-charge and quantity limits. So for container-scale exports the practical routes are sea (IMDG) or road — sea freight is not just the cheapest option but often the only compliant one.
What to Prepare Before Shipping¶
- Correct UN classification — confirm whether the battery is UN2794 or UN2800
- MSDS — a current Material Safety Data Sheet for the battery
- Packing — secure against short circuit and movement
- Destination rules — some countries have additional import requirements
DINWEYS Export Support¶
Chengguang Power Tech Co., Ltd. exports to 70+ countries with:
- Standard MOQ of 1 × 20ft container
- Lead time of 20–45 days
- Full MSDS and shipping documentation per batch
For export terms and destination-specific requirements, contact martin@dinweys.com.
Related¶
References¶
- Battery Council International — VRLA / AGM technology
- About lead batteries — Battery Council International
Find the Right Battery¶
Need a specific model or datasheet? Browse the DINWEYS product range (shipping documentation) or contact us for a quote.
Frequently Asked Questions
Are truck batteries dangerous goods for shipping?
Yes. Lead-acid truck batteries are classified as dangerous goods — UN2794 for wet flooded batteries, and UN2800 for non-spillable AGM/VRLA batteries that pass the relevant tests.
What is the difference between UN2794 and UN2800?
UN2794 covers wet, acid-filled batteries; UN2800 covers non-spillable batteries (typically AGM/VRLA). UN2800 is exempt from some wet-battery requirements, making it simpler and cheaper to ship.
How do truck batteries ship internationally?
By sea under the IMDG Code, with terminals protected against short circuit and movement and full documentation (invoice, packing list, MSDS, DGD where required). Wet UN2794 is restricted from passenger air freight, so sea is usually the only compliant route at container scale.
What documentation is needed to ship batteries?
A commercial invoice, packing list, a current MSDS, and a dangerous-goods declaration (DGD) where required — the DGD hinges on the UN number, UN2794 or UN2800, so get the classification right before the paperwork. Some destination countries impose additional import requirements.
Why is AGM easier to export than flooded?
AGM batteries that meet the non-spillable criteria classify as UN2800, which is exempt from some of the more onerous wet-battery requirements — a key reason AGM is attractive for export programs.