Home batteries from China: what most people don't realize

Key takeaways

• Nearly every home battery in the Netherlands — from Growatt to Huawei to SolarEdge — contains LFP cells from China
• Europe currently produces zero LFP cells for home storage. The first factories are expected no earlier than 2027-2029
• Importing yourself via AliExpress realistically costs EUR 4,000-9,000 — not the EUR 1,500 you see in thumbnails
• Less than 5% of AliExpress sellers who claim CE actually deliver certification documents
• "Chinese = bad" isn't true, but "AliExpress = cheaper" isn't true either when you add everything up

The supply chain you never see

There's a persistent narrative in the Netherlands. On one side you have "Western" battery brands — reliable, certified, safe. On the other you have "Chinese junk from AliExpress" — cheap, questionable, possibly dangerous. It's a comfortable frame. It just doesn't hold up.

The reality is more uncomfortable, and I want to lay it out in full here. Not the version that fits into a ten-minute video, but the complete picture I've mapped out over the past few months.

Let's start at the beginning. Not at the webshop or the installer, but at the ground.

From lithium mine to your wall

The journey of a home battery cell begins somewhere in the triangle of Argentina, Chile, and Bolivia — the so-called "lithium triangle" — or in the mines of Australia and the Democratic Republic of Congo. That's where the raw lithium is extracted, along with iron and phosphate, the raw materials for LFP cells (lithium iron phosphate), the cell type that has become the standard for home storage.

Those raw materials go to refineries. Mostly in China. China currently processes more than 65% of all the world's lithium into battery material. Not because the mines are there, but because China has invested massively in processing capacity over the past fifteen years. The refinery produces cathode material and anode material — the active substances in a battery cell.

From the refinery, the material goes to a cell factory. The big three: CATL in Ningde, BYD in Shenzhen, EVE Energy in Huizhou. There, the cylindrical or prismatic cells are produced — the building blocks of every home battery.

From the cell factory, the cells go to a brand manufacturer. Sometimes that's the same company — BYD makes both the cell and the end product. But more often it's a separate company: Growatt buys cells from CATL and EVE, and builds a complete battery system around them in their own factories. With their own BMS (battery management system), their own casing, their own software, their own safety tests.

That system then goes to an EU distributor — a company with a European warehouse, typically in Germany, the Netherlands, or Poland. The distributor handles the import, customs, VAT payments, and logistics to installation companies.

The Dutch installer buys the system from the distributor, installs it at your home, configures it, connects it to your electrical panel and inverter, and gives you a commissioning report.

And then it hangs on your wall. A product with raw materials from South America and Africa, refined in China, assembled into a cell in China, built into a system in China, shipped to Europe, and mounted by a Dutch installer.

The complete chain, step by step:

Lithium mine (Australia/Chile/Argentina/Congo) → Refinery (China, 65%+ globally) → Cell factory (CATL/BYD/EVE in China) → Brand assembly (Growatt/Huawei/Deye in China) → EU distributor (warehouse Germany/Netherlands) → Dutch installer → your wall

Six links. Four of them are in China. Regardless of which logo is on the outside.

Brand by brand: where do the cells really come from?

I researched the cell origin of the ten best-selling home battery brands in the Netherlands. The table below shows what I found.

Ten brands. Ten times Chinese cells. One hundred percent.

Even SolarEdge — an Israeli company, often positioned as a "Western alternative" — sources its cells from China. Enphase, American, same story. There is simply no production facility outside China that makes LFP cells at scale for home storage applications right now.

The "European premium" you pay with some brands isn't for European cells. It's for European assembly (sometimes), European certification (often), European distribution (always), and European warranty handling (hopefully). But the cell itself — the electrochemical heart of your battery — comes from the same Chinese factories.

What about European cell factories?

The names that regularly come up as "European alternatives":

• Northvolt (Sweden) — went bankrupt in late 2024 after EUR 15 billion in subsidies and investments. Was focused on NMC cells for the automotive industry, not LFP for home storage. The assets are now being restructured.
• Verkor (France) — makes NMC cells for Renault. No LFP production, no home battery line.
• Volkswagen PowerCo — building gigafactories for NMC cells for their own cars. No home storage production planned.
• ACC (Automotive Cells Company) — joint venture of Stellantis, TotalEnergies, and Mercedes-Benz. NMC for cars.

None of these companies make LFP cells. None of these companies make cells for home storage. The first European LFP cell production is optimistically estimated at 2027 to 2029. But given the track record — Northvolt had everything: money, political support, talent, and it still didn't work — it's more realistic to say: it might happen, but don't count on it.

My AliExpress investigation: 23 sellers, less than 5% certification

This is the part of my research that surprised me the most, and that I want to cover here in more detail than any video could allow.

I contacted 23 sellers on AliExpress who offer home battery cells and/or complete battery systems. I asked each of them the same question: can you provide the CE certification documentation? Specifically: the test report from an independent testing institute (TUV, SGS, Intertek, or equivalent), including the certificate number.

What I got back fell into four categories.

Category 1: Complete, verifiable documentation — 1 out of 23 sellers. One seller provided a complete TUV test report for a specific cell model, with a certificate number I could verify on the TUV website. This seller was also the most expensive in my selection — the price per kWh was only 15-20% below a comparable branded product.

Category 2: Documents that didn't check out — 4 out of 23 sellers. These sent PDFs that looked professional, but didn't hold up under scrutiny. A certificate number that didn't exist. A report that referred to a different product than what they were selling. A document from a "testing institute" I couldn't find.

Category 3: Evasive or deflecting — 7 out of 23 sellers. These responded but referred to "the manufacturer" without further details, sent a photo of the CE sticker on the box, or promised to deliver the documents "after ordering."

Category 4: No response — 11 out of 23 sellers. Nothing. No answer to two messages, spread over three weeks.

The bottom line: less than 5% of sellers could provide demonstrable, verifiable certification. With the remaining 95%, you're buying on trust.

This doesn't mean all those products are inherently unsafe. CATL cells are CATL cells — the cell itself may be perfectly fine. But it does mean that no one has independently verified that the total product — cell, BMS, wiring, casing — is safe. And that distinction is crucial.

The real costs: an honest calculation

The YouTube thumbnails promise it: "Home battery for EUR 1,500!" And yes, you can find loose LFP cells on AliExpress for that amount. But loose cells aren't a working system. This is what you actually need, and what it costs.

Detailed cost breakdown for DIY import (5 kWh system)

For comparison: a complete, certified system with installation:

The price difference between DIY and off-the-shelf is barely there — and with the DIY route, you get a hefty list of problems thrown in for free.

Insurance and liability: the risk you don't see

This is the part that always gets shortchanged in a video, and where I'm taking the space to work it out fully here.

How your insurance works in case of fire

Your building insurance covers damage to your home, including fire damage. But there's a condition: you must not have knowingly increased the risk by using defective installations or products. This falls under the so-called "own fault" provision.

In the case of a fire caused by a certified home battery system installed by a recognized installer, the situation is clear. The insurer covers the damage. Subsequently, the insurer can recover the damages from the manufacturer through product liability. There's a chain of responsibility: installer, distributor, manufacturer. Someone is accountable.

In the case of a fire caused by a non-certified system that you imported and installed yourself, things get more complicated. The insurer can argue that you knowingly increased the risk. That you used a product you knew — or should have known — didn't meet safety standards. And that the installation wasn't carried out by a qualified person.

What I heard from an insurance advisor

During my research, I spoke with two insurance advisors and the customer service of a major Dutch insurer. The message was consistently the same:

A certified system with a professional installation causes no issues. You don't always even need to report it, although it's wise to do so.

A self-imported system without demonstrable certification is a gray area. Most insurers won't proactively refuse, but in the event of damage, it can lead to disputes. And you'll be having that dispute at the moment your house has just burned down — not the moment you're in a strong position.

A self-installed system without certification and without inspection is the highest risk. Multiple advisors explicitly advised against this.

Product liability and recourse

Another layer that's often forgotten: if your battery causes a fire and damages neighbors or third parties, you as the owner are liable. With a certified product, you can hold the manufacturer accountable. With an AliExpress purchase from a seller that may no longer exist, you have no one to turn to. The claim lands on you.

The European Product Liability Directive protects consumers against defects in products placed on the European market by an EU-based party. If you import yourself, you are the importer — and therefore legally the first link in the chain. The liability is yours.

Warranty across borders

And then there's the warranty. Suppose your cells fail after two years. Your seller is based in Shenzhen. You have no local representative, no Dutch return address, no European warranty legislation you can enforce. The cost of filing a claim — if the seller still exists — quickly exceeds the value of the product.

With a brand like Growatt, BYD, or Huawei, you have a European office, a local distributor, and an installer who comes back under warranty. That's not glamorous, but it works.

CE marking vs. real certification: the difference that matters

Nearly every AliExpress seller claims CE certification. Two letters on a sticker. But those two letters mean something fundamentally different from what most people think.

What CE marking actually is

CE marking is fundamentally a self-declaration. The manufacturer compiles a technical file, writes a declaration of conformity, and sticks the CE label on the product. No independent testing is required. The manufacturer declares on their own that the product complies with the relevant European directives.

In theory, that technical file must be available for market surveillance authorities. In practice, with direct imports from China, this is rarely if ever checked. The Dutch market surveillance authority (NVWA/Agentschap Telecom) has limited capacity and primarily focuses on products entering the market through regular trade channels.

What real certification involves

Actual certification means that an independent, accredited testing institute — TUV Rheinland, TUV SUD, SGS, Intertek, or equivalent — has physically tested the product. For home batteries, the relevant standards include:

• IEC 62619 — safety requirements for secondary lithium cells for industrial applications
• UN 38.3 — transport safety tests for lithium batteries
• IEC 62040 — for systems with integrated inverter
• EN 50549 — grid connection requirements

The testing institute conducts overcharge tests, short-circuit tests, drop tests, temperature tests, and nail penetration tests, among others. If the product passes, it receives a certificate with a unique number that you can verify on the testing institute's website.

The difference is the difference between someone who says "I can drive" and someone who has a driver's license. Both can be true. But with one, an independent party has verified it.

When DIY import does make sense

It would be intellectually dishonest to say: never do it. There are situations where importing yourself is defensible. But those situations are more specific than most YouTube videos suggest.

The profile where it can work

Technical knowledge — You understand BMS configuration, cell balancing, and the risks of lithium systems. Not at an "I watched a YouTube video" level, but at an "I can configure a Daly BMS and know what a cell-level fuse does" level. You can read and interpret a technical datasheet.

Insurance alignment — You've confirmed in writing with your insurer beforehand that a self-imported system won't affect your coverage. Not assumed, not presumed — confirmed in writing.

Independent inspection — You have the complete installation inspected by an independent, qualified electrician. Not your neighbor who's "handy," but someone with proper certification.

Patience and time — You have room for weeks of troubleshooting. BMS configuration, cell balancing, firmware updates, communication protocols — it all takes time. This isn't a Saturday afternoon project.

Verified supplier — You're buying from a supplier who can show actual, verifiable certification. And you verify that certification yourself, with the testing institute.

Documentation — You document everything. Receipts, certificates, installation photos, inspection reports. If something ever goes wrong, you have a file.

The profile where it doesn't work

If reading the list above makes you think "that's a lot of hassle" — then DIY import isn't for you. And there's no shame in that. Most people don't buy car parts from China to install themselves either. With battery systems that carry fire risk, the bar is even higher.

My honest estimate: at most 5% of the people I talk to fit the profile where DIY import is rational. For the remaining 95%, the risk isn't worth the savings — if there are any savings at all.

The nuanced conclusion

"Chinese = bad" is too simple a frame. All home battery cells in the Netherlands come from China. The CATL cell in your Growatt system is the same quality cell as a CATL cell you buy loose on AliExpress. The cell itself isn't the problem.

What you're paying for with an established brand isn't the cell — that costs the same everywhere. You're paying for:

• Certification — independently tested and documented
• BMS integration — the battery management system that prevents your cells from overcharging, overheating, or going out of balance
• Warranty — enforceable, local, and with a European point of contact
• Insurance compatibility — your insurer accepts the product
• Installer network — someone who comes back when it doesn't work

That adds up. But it's not price gouging — it's the cost of a chain that works when things go wrong.

The real question isn't "am I buying Chinese or not?" — because you are either way. The real question is: do you want the chain in between, or are you going to handle it yourself? And if you handle it yourself, know what you're taking on.

Watch the visual explainer too

This article goes deeper into the supply chain, certification issues, and insurance implications than any video could. Want the story in a more compact, visual form? Check out the explainer on ThuisbatterijNederland:

Home batteries from China — what you need to know

Sources

• SNE Research — Global EV and Battery Market Tracker Q4 2025 — market shares CATL, BYD, EVE Energy
• BloombergNEF — Global Lithium-Ion Battery Supply Chain Ranking 2025 — supply chain analysis
• IEC 62619:2022 — Safety requirements for secondary lithium cells for industrial applications — the certification standard for home batteries
• European Commission — CE marking — what CE marking legally means
• Northvolt — Chapter 11 filing (November 2024) — bankruptcy of European cell producer
• Verbond van Verzekeraars — Position on home batteries and fire safety — insurance implications
• RVO — Import duties and VAT when importing from China — customs costs
• TUV Rheinland — Battery testing and certification — independent certification