Lead-Acid Battery Export Logistics: FAQs for Buyers
Batteries are heavy, regulated, and unforgiving of sloppy paperwork. A container that cleared at origin can sit in destination port when gross weight per carton disagrees with the packing list, or when certificate model numbers do not match nameplates. This FAQ collects the logistics questions our export team answers most often for FOB Shenzhen shipments.
How are batteries packed for ocean freight?
Finished VRLA and OPzV units ship in export cartons with foam or corrugated separators, stacked on **fumigated wooden or plastic pallets**. Corner boards and stretch wrap protect against pier handling. Pallet height is optimized for 20' or 40' container cube while staying within safe forklift limits — typically under 1.2 m for stability unless your project specifies otherwise.
**Moisture:** Containers are ventilated but not climate-controlled. Desiccant in cartons and intact stretch wrap reduce corrosion on terminals during long transits through humid routes.
What does FOB Shenzhen mean for liability?
Under FOB (Free On Board), the seller delivers goods cleared for export on board the vessel at Shenzhen port. **Risk transfers** when goods pass the ship's rail; ocean freight and insurance are buyer's arrangement unless you negotiate different incoterms.
We coordinate factory trucking to port, export customs declaration, and loading per booking. Your forwarder supplies vessel, bill of lading consignee, and destination charges.
Which documents accompany the shipment?
Standard export set:
- Commercial invoice with HS code (often 8507 series for lead-acid storage batteries — confirm with your broker)
- Packing list with net/gross weight per carton and pallet
- Bill of lading or sea waybill
- Certificate of origin if your market requires FORM A or similar
- **MSDS/SDS** for carrier and port safety reference
- Copy of test certificates when contract requires
Model numbers on invoice lines must match nameplates and certificate PDFs — customs brokers flag mismatches automatically in many countries.
UN classification and non-spillable status
Sealed VRLA batteries meeting UN 2800 (non-spillable) criteria ship under relaxed packing rules compared to flooded lead-acid. Packaging marks should reflect factory declaration. If your SKU includes flooded types, classification changes — declare chemistry accurately on the MSDS.
Air freight is stricter and costlier; most project volumes move by sea.
Pallet stacking and weight limits
Overstacking cartons crushes cases on bottom layers and can deform terminals. We follow factory stacking labels — **do not assume** your warehouse can double-stack without checking gross weight.
Provide forklift capacity at destination before scheduling delivery; 2V3000Ah pallets exceed 1.5 tons.
Inspection before container seal
Many distributors order **pre-shipment inspection** (PSI) on first runs:
- Random carton open for terminal torque and nameplate photo
- Quantity count vs PO
- Label language check
We welcome third-party inspectors with 48-hour notice at factory.
Insurance and damage claims
Ocean cargo insurance is buyer responsibility under FOB. Photograph pallet condition at receipt before breaking stretch wrap. Hidden damage claims need terminal photos and survey report within carrier time limits — often tight.
Lead time and booking windows
Production lead time depends on SKU mix and season (pre-Chinese New Year slots fill early). After goods are ready:
- Forwarder books vessel slot
- SI cutoff and VGM submission
- Typical Shenzhen transit 18–35 days to major hubs depending on route
Share your **needed arrival week** when placing PO, not only production date.
Mixed containers and MOQ
Distributors often mix Ah ratings to fill a 20' container. Requirements:
- Compatible pallet heights
- Clear packing list sections per SKU
- Certificate bundle per SKU line
Small MOQ SKUs may ship LCL (less than container) with higher per-unit freight — model total landed cost, not only FOB unit price.
Frequently asked questions
**Can you ship to my freight forwarder's warehouse in Shenzhen?**
Yes — coordinate delivery address and booking reference on the PO.
**Do you mark batteries as dangerous goods on the B/L?**
Marking follows UN classification and carrier rules; non-spillable VRLA often ships as general cargo with MSDS on file — your forwarder confirms per line.
**What about import duties?**
Buyer responsibility. HS code and country of origin affect rate; use a licensed broker for landed cost estimates.
**How do I get a shipping quote with batteries?**
Send destination port, container type (20'/40'), and SKU pallet count from our [product pages](/products/) or sales BOM.
**Who do I contact for export status?**
After PO confirmation, our team shares production finish date and ready-to-load window. Use the [contact form](/contact/) with PO number for status.
Good logistics planning starts at quotation — share port, certification needs, and container target when you request pricing so FOB price reflects realistic palletization, not a theoretical unit weight.