You built a product with a battery in it. It could be a dashcam, a headlamp, a smart gadget, or a wearable. No matter what, it’s something with a rechargeable cell inside.

Then you went looking for a fulfillment partner, and half of them either said no or quietly stopped replying.

That’s frustrating. And it’s confusing, because your product isn’t a crate of loose battery packs. And it sure doesn’t look like hazmat. It looks like the most normal thing in the world. Because it is. It’s simply a finished consumer good with the battery safely tucked inside.

Here’s the good news: the “yes or no” question is the wrong one. What matters is how the battery is configured, how it ships, and what the carriers (USPS, FedEx, UPS, etc.) require. Once you understand that, it’s much easier to find a partner who can help—and to know whether that partner is us.

This guide will walk you through all of it.

Why most 3PLs decline lithium batteries

Lithium batteries are useful precisely because they pack a lot of energy into a small space. That same quality makes them a hazard. If a cell is damaged, short-circuited, or poorly made, it can overheat and, in the worst case, catch fire.

Because of that risk, lithium batteries are legally classified as dangerous goods. Shipping them comes with rules about packaging, labeling, documentation, and staff training. There are serious penalties when those rules aren’t followed. Mistakes can mean five-figure fines and rejected shipments. When a package gets pulled for a violation, aviation authorities can collect the shipper’s information and pursue enforcement from there.

Faced with that, a lot of fulfillment centers make a simple business decision: decline everything with a battery in it. It’s the easy way out.

But it’s also a blunt instrument. Refusing all lithium lumps a compliant, battery-in-device consumer product—the kind millions of people order every day—in with the genuinely high-risk stuff. That’s not fair.

What shipping carriers require

You don’t need to become a hazmat expert to sell a battery-powered product. But it helps to understand the handful of factors that determine how your product ships. Here are the ones that matter.

Configuration is everything

The single biggest factor is how the battery travels:

  • Batteries shipped by themselves (loose cells or packs, no device) are the most tightly regulated. In shipping terms, lithium-ion batteries shipped alone fall under UN3480, and they carry the heaviest restrictions—including cargo-aircraft-only limits for air transport.
  • Batteries installed in or packed with equipment, such as a battery inside a gadget, or in the same box as the device it powers, fall under UN3481. These are still regulated, but the device and its packaging offer protection, so the rules are generally more forgiving.
  • Non-rechargeable lithium-metal batteries (think coin cells in a watch or key fob) are a separate category again, under UN3090 and UN3091, with their own rules.

Most consumer electronics fall into that middle bucket: a battery, safely installed in a finished product.

Small-battery exceptions

Size matters, and it works in your favor. A lithium-ion cell rated at 20 watt-hours or less, or a battery pack rated at 100 watt-hours or less, qualifies for reduced requirements. This is what regulators call “Section II” exceptions. Within those limits, a battery packed with equipment often doesn’t require a full dangerous-goods declaration.

That’s exactly why your laptop, phone, and most gadgets can move through the mail without a stack of hazmat paperwork following them around. The overwhelming majority of small consumer electronics fit comfortably inside these thresholds.

Ground versus air

Ground shipping is far more flexible. It allows higher thresholds for small-battery exceptions, has no state-of-charge cap, and is where most eCommerce lithium parcels go.

Air is the strict one. As of 2026, lithium-ion batteries packed with equipment must be shipped at no more than 30% of their rated charge to fly, and standalone batteries have had that same limit for years. Critically, a package that’s perfectly compliant for ground will get rejected if it’s routed through an air sort center without meeting the air rules. That’s why most eCommerce shippers simply default to ground for battery products.

The baseline rules that always apply

A few requirements hold regardless of configuration or mode:

  • UN 38.3 testing. Every lithium battery must pass a standardized safety test before it can ship. Your manufacturer should be able to provide a test summary. Ask for it before your first shipment moves.
  • Proper marking and packaging. Batteries need short-circuit-safe packaging and, in many cases, the standardized lithium battery mark on the outside of the box.
  • Watt-hour rating on the battery. As of 2026, the watt-hour rating must appear on the battery itself.

And enforcement is tightening. USPS, for example, began charging a $50 noncompliance fee in July 2026 for packages that are improperly declared, marked, or packaged. The rules reward shippers who get the details right.

What Fulfillrite can do with lithium batteries

Here’s where we draw our line.

Fulfillrite fulfills everyday products with lithium batteries installed in or packed with them—the UN3481-style configuration—shipped by ground, within the standard small-battery limits described above. If your product is a finished consumer good with a compliant battery inside, we can very likely ship it.

That covers a lot of ground:

  • Consumer electronics and gadgets such as dashcams, cameras, audio devices, smart-home products
  • Wearables and accessories with rechargeable cells
  • Electronics kits and bundles, including multi-component products that need assembly
  • Crowdfunded hardware, from a first Kickstarter run to a full campaign fulfillment

And you get the same treatment every Fulfillrite client gets:

  • Same-day shipping for orders received by 2 PM local time
  • 99.8% order accuracy, backed by barcode scanning at every pick
  • Kitting and assembly for products that ship as a set
  • Serialized inventory tracking, so you know exactly which unit went where
  • A dedicated account rep who knows your product and your name
  • A carrier mix—USPS, UPS, FedEx, DHL eCommerce, and Asendia—so every order ships the smartest way

International shipping is available for many battery-powered products, too, though eligibility depends on the destination and the exact configuration. We’ll confirm what’s possible during setup.

The point is this: if you’ve been turned away by 3PLs that decline all lithium on principle, you may simply have a good-fit product that landed at the wrong doors.

What Fulfillrite cannot do with lithium batteries

We’d rather tell you upfront than waste your time. Fulfillrite is not a full-service dangerous-goods operation, and there are battery shipments we don’t take.

Specifically, we don’t handle:

  • Loose or standalone batteries shipped by themselves (UN3480). Cells and packs shipped without a device attached are the most heavily regulated configuration, and they’re outside what we do.
  • Damaged, defective, or recalled batteries. These require specialized packaging and restricted handling that we’re not set up for.
  • Fully regulated (Section I) shipments that require a formal shipper’s declaration, hazmat-certified staff, and air dangerous-goods paperwork.
  • Vape, e-cigarette, and similar battery hardware, which carries additional carrier and legal restrictions on top of the battery rules.

A couple of our standard product limits matter here as well: we’re built for parcel fulfillment, so we cap out around 50 pounds per product and don’t take oversized or freight-only items.

If your product falls into one of these buckets, that’s not a knock on your business. Rather, it means you need a specialized dangerous-goods carrier, and we’ll happily point you in that direction rather than take on something we can’t do well.

How to get set up with lithium battery fulfillment

Getting started is straightforward. The only extra step, compared to a battery-free product, is confirming your product is a good fit.

Here’s what helps us do that quickly:

  1. Your battery’s configuration and watt-hour rating. Is the battery installed in the device, packed alongside it, or shipped alone? What’s the Wh rating? This tells us immediately whether it’s in scope.
  2. Your UN 38.3 test summary. Your battery manufacturer should provide this. It’s the standard safety documentation carriers may ask for.
  3. The usual onboarding basics. A signed agreement, your store integration, SKU and product data, and your inbound inventory details.

From there, onboarding looks like any other Fulfillrite launch. Most clients are up and running within about a week, with a dedicated contact guiding you through setup.

Final Thoughts

A battery inside your product shouldn’t be the thing that stalls your launch.

Yes, lithium is regulated. Yes, plenty of fulfillment centers take the easy way out and decline it all. But the rules aren’t as scary as a blanket “no” makes them sound. For the vast majority of consumer products—a battery, safely installed, shipping by ground—fulfillment is routine.

The trick is finding a partner who understands the difference between a compliant gadget and a genuinely high-risk shipment, and who’ll be honest with you about which one you have.

Need help shipping products with lithium batteries?

If you’ve got a gadget, a wearable, or a hardware campaign and you need to ship products with lithium batteries in them, we can probably help.

We’ve helped thousands of eCommerce and crowdfunding brands like Calamityware, Arduino, Nexar, Particle, Zip Top, Level 99 Games, Spaza, TMK Supplies, and Alphabet for Humanity ship orders. These companies range from startups doing 100 orders a month to established brands doing 10,000+.

Fulfillrite integrates with Shopify, WooCommerce, Amazon, BigCommerce, Etsy, eBay, and Walmart, plus major pledge managers including BackerKit, Crowd Ox, Gamefound, and PledgeBox.

For more client feedback, see our reviews page. We hold a 4.9/5 average across 241 reviews on Trustpilot, Google, and the Shopify App Store.

Tell us a little about your business and we’ll put together a custom quote for you.

Frequently Asked Questions

Can a 3PL ship products with lithium batteries?

Yes, many can, provided the batteries are installed in or packed with equipment and fall within standard small-battery limits. What most 3PLs won’t do is handle loose batteries shipped alone, damaged batteries, or fully regulated air hazmat freight. The key is matching your product’s configuration to what a given fulfillment center is set up to handle.

Does Fulfillrite ship lithium batteries?

We ship products that contain lithium batteries such as gadgets, wearables, electronics, and crowdfunded hardware—as long as the battery is installed in or packed with the product and ships by ground within standard limits. We don’t handle standalone/loose batteries, damaged or recalled batteries, or full dangerous-goods air shipments.

Do I need a dangerous-goods declaration for my product?

Often, no. Lithium-ion cells rated at 20 watt-hours or less, and packs rated at 100 watt-hours or less, packed with equipment, typically qualify for exceptions that don’t require a full shipper’s declaration. Most small consumer electronics fall comfortably within these thresholds. Larger batteries or standalone shipments are more likely to require formal documentation.

What’s the difference between UN3480 and UN3481?

UN3480 covers lithium-ion batteries shipped by themselves, with no device—the most restricted category. UN3481 covers lithium-ion batteries installed in or packed with equipment, which is how most finished consumer products ship. The distinction drives nearly everything about how a shipment is regulated.

Why do lithium batteries usually ship by ground?

Ground shipping has more forgiving rules: higher thresholds for small-battery exceptions and no state-of-charge cap. Air is stricter, including a 30% charge limit for many battery types, and a ground-ready package will be rejected if it hits an air sort center without meeting air rules. Defaulting to ground keeps things simple and reduces the risk of rejection.

Can you ship my battery-powered product internationally?

In many cases, yes. International shipping is available for a range of battery-containing products, but eligibility depends on the destination country and your product’s exact configuration. We’ll confirm what’s possible for your specific product during onboarding.

What do I need from my battery manufacturer before shipping?

At minimum, request the UN 38.3 test summary. It’s standardized safety documentation that carriers or customs authorities may ask to see. It’s smart to have it on hand before your first shipment moves. Confirming the battery’s watt-hour rating and chemistry helps too, since both affect how the product can ship.

My product has a battery inside. Is it really considered “dangerous goods”?

Technically, yes, lithium batteries are classified as dangerous goods even when installed in a finished product. But “dangerous goods” doesn’t mean “unshippable.” It means there are rules to follow. For most small consumer electronics, those rules are well-established and routine, which is exactly why your everyday gadgets move through the mail without issue.

What happens if my batteries are damaged, recalled, or defective?

These require specialized handling and packaging and are restricted to certain services by law. Fulfillrite doesn’t process damaged, defective, or recalled batteries. You’ll need a carrier or partner that specializes in that specific category.

How do I know if Fulfillrite is a good fit for my product?

The fastest way is to tell us about your product: what it is, the battery configuration, and the watt-hour rating. From there we can usually tell you right away whether it’s in scope. Reach out for a custom quote and we’ll give you a straight answer.