The truth about the price war for overseas energy storage: How should dealers choose suppliers

Open any B2B platform and search for "LiFePO4 battery", you will see quotes ranging from US$70/kWh to US$180/kWh more than double. Also marked with "5 kWh, 51.2V, LiFePO4, 8000 cycles", why is the price gap so big? Is the low price real, or is there something hidden?

💡 One-sentence conclusion : The "low price" of energy storage batteries usually consists of one or more of three things - low-quality cells, lack of certification, and no after-sales system. Not all low prices are problematic, but dealers must know where the price difference comes from before they can judge whether it is worth saving.

Picture: Actual shot of the battery factory production line. The battery cell sorting and welding process directly determine the quality of the finished product

The background of the price war: what happens in 2024-2026

Since 2024, the FOB price of LiFePO4 battery cells has dropped from approximately US$90/kWh to US$55-65/kWh (data source: SNE Research, Xinchen Information). The underlying driving force for this round of decline is overcapacity - China's leading battery cell factories (CATL, BYD, Ruipu Lanjun, etc.) have massively expanded production, and second-tier manufacturers have followed suit. The total production capacity has exceeded global demand by 2025.

The price reduction of battery cells is transmitted to the finished batteries. In theory, dealers should get cheaper systems. But the problem is: The decline in finished product prices is much smaller than the decline in battery cells . The reason is that in the cost structure of the finished battery, cells only account for 50-60%, and the remaining 40-50% is BMS, structural parts, wiring harness, pack process, testing, certification and logistics. The costs of these links will not drop simultaneously with battery cell prices.

Therefore, when a supplier quotes a price that is far lower than the average market price, what it saves is not battery cells (everyone uses battery cells at reduced prices), but other links.

Where does "low price" come from: The three most common cost reduction techniques

Method 1: Low-quality batteries or downgraded batteries

Not all LiFePO4 cells are the same. Under the same chemical system, the difference in battery quality can be very large:

The appearance of Class B batteries is almost identical to Class A, and a layman cannot tell the difference. But the cycle life gap is 2-3 times. A 5 kWh battery with B-grade cells may decay from 5 kWh to 3.5 kWh in two years - and dealers have sold it to end customers as 5 kWh.

⚠️ Key judgment: If the supplier’s quotation is more than 20% lower than the average market price, and the original cycle test report from the battery cell manufacturer cannot be provided (note that it is the original, not a copy), there is a high probability that Class B or disassembled batteries are used.

Picture: Finished battery pack process——BMS The cost of protective board, copper bar connection, and insulation protection accounts for about 15-20% of the finished product

Method 2: Missing certification or using fake certification

CE Certification is the threshold for energy storage batteries to enter most overseas markets. But "there is CE" and "CE files are complete and available for inspection" are two different things.

Common certification issues on the market include:

• Self-declaration but no technical documents : CE Allow manufacturers to self-declare compliance, but need to retain complete technical documents (test reports, circuit diagrams, BOM, risk assessment). Some suppliers only affixed the CE mark and could not provide technical documents.
• Borrowing other people’s certification: Use other models or other companies’ CE certificates to impersonate. This situation is not uncommon on B2B platforms.
• CE The document does not match the actual model : The certificate says model 10 kWh, but what is actually shipped is model 5 kWh. The electrical parameters of the two are completely different.

UN38.3 The test report is a mandatory requirement for shipping lithium batteries. Without UN38.3, the freight forwarder cannot book space. However, some low-price suppliers do not mention UN38.3 during the quotation stage, and only say "additional charges" are required when shipping, or give an old report that is inconsistent with the actual product.

Method Three: No after-sales system

After-sales costs are hidden costs. A battery-powered BMS motherboard is broken, and the cost of replacement + logistics + labor may be $200-500. If the supplier does not have an overseas after-sales network, spare parts inventory, or remote technical support, the dealer will have to bear this cost.

The most common practice of low-price suppliers is "one-and-done sale": they don't care after selling out, and if there is a problem, they ask you to contact the battery manufacturer. However, battery cell manufacturers do not directly face overseas dealers, and the accountability link is extremely long, and there is a high probability that the matter will go unresolved in the end.

Practical checklist for dealers to select suppliers

Based on the above analysis, we give overseas distributors an executable supplier evaluation checklist:

1. Battery cell traceability

• [ ] Require the supplier to provide the battery cell supplier name and batch number
• [ ] Require to provide the original battery cell cycle test report (not a scanned copy)
• [ ] Confirm that the battery cell cycle life is ≥6000 times (80% DoD), target ≥8000 times
• [ ] Random inspection: dismantle a sample battery and verify that the cell brand silk screen is consistent with the document

2. Authentication integrity

• [ ] CE Technical documents: including EMC test report (EN 61000 series), LVD test report (EN 62619), Declaration of Conformity (DoC)
• [ ] UN38.3 Test summary: Consistent with the actual shipped model
• [ ] MSDS (Material Safety Data Sheet)
• [ ] The models and parameters on all documents are consistent with the actual purchased products

3. After-sales capability

• [ ] Warranty terms: at least 5 years (battery) / 3 years (inverter), including attenuation rate commitment
• [ ] Spare parts supply: Confirm that the supplier has BMS in the destination country or regional warehouse Key spare parts such as motherboards and communication lines
• [ ] Remote support: Can APP monitoring + remote diagnosis be provided
• [ ] Traceability system: Each battery has an independent serial number, which can be traced back to the production batch and battery cell batch

Picture: Battery finished product warehouse, serial number traceability is the infrastructure of the after-sales system

The correct method of price comparison

When comparing prices, dealers should convert the quotes from different suppliers into "available capacity per kWh × cost per cycle" for comparison:

Calculation method: Quotation ÷ (Capacity × DoD × Number of cycles). Take 10kWh battery as an example:

• Supplier A: $1200 ÷ (10 × 0.8 × 8000) = $0.019/time/kWh
• Supplier B: $950 ÷ (10 × 0.8 × 4000) = 0.030 US$/time/kWh
• Supplier C: US$750 ÷ (10 × 0.8 × 1500) = US$0.063/time/kWh

On the surface, C is the cheapest, but based on "every time it is available kWh", the cost of C is more than three times that of A. And that’s not counting the customs clearance risks and non-warranty after-sales costs that may result from C’s lack of certification.

Our attitude

As an energy storage battery manufacturer, we also face price pressure. But our choice is:

• Use A-grade batteries, provide the original cycle test report
• CE Complete certification (EMC + LVD + RoHS), UN38.3 Comes with the goods
• 5 Annual warranty includes attenuation rate commitment, serial number traceability
• Do not pretend to have UL (still in progress), do not pretend to have customer cases (if not, just tell us)

This is not a moral high ground, but a business logic: energy storage batteries are products with a 10-year lifespan, and the dealer’s profit source is not the price difference on the first purchase, but repurchase and word-of-mouth over the 10 years. The first time it was $200 cheaper, the after-sales and trust losses in the next nine years were far more than that.

Conclusion

The price war is not scary. What is scary is not knowing where the price difference comes from. By clarifying the three dimensions of cell traceability, certification integrity, and after-sales capabilities, the choice between low price and reasonable price will no longer be entangled. For dealers, choosing the right supplier is the starting point for long-term business, not a one-time transaction.