Batteries and energy storage systems from China
We supply lithium iron phosphate batteries, energy storage systems and UPS from Chinese factories. We check the cells, the BMS and the documents for dangerous goods transport.
Buying in China: what you need to know
China produces most of the world’s lithium-ion cells. The key LiFePO4 makers are CATL (Ningde, Fujian province), BYD (Shenzhen), EVE (Huizhou, Guangdong), as well as CALB, REPT, Gotion and Hithium. Hundreds of companies assemble battery modules, rack batteries and containerised systems, and most of them do not make cells themselves but buy them from these manufacturers.
Hence the main question when buying batteries from China — which cells are inside. The market has grade A cells (new, sorted at the factory), grade B cells (with deviations in capacity or resistance) and cells refurbished after use. The battery looks the same from outside; the difference is only visible from documents, cell markings and testing. Poorly matched cells in one pack quickly go out of balance and shorten the system’s life. The cycle count stated in a catalogue applies to the manufacturer’s cells under specific conditions, not to any battery that supposedly contains them.
The second key component is the battery management system (BMS) and its compatibility with the inverter. 48 V rack batteries must support your inverter’s communication protocol; high-voltage systems and containerised BESS must have fire suppression, climate control and monitoring software. Factories differ here more than in cell price. For a hot climate we also look at operating temperature and cooling: lithium batteries working for long periods in an overheated room lose life faster.
What we do differently: we ask the assembler for data on the cell supplier, check markings and QR codes, test samples for capacity and internal resistance, and check BMS compatibility with the inverter. An energy storage supplier for Uzbekistan, Kazakhstan or Kyrgyzstan must also pack the system correctly as dangerous goods — without that, neither the carrier nor customs will accept the cargo.
What we supply
LiFePO4 cells
Prismatic cells from CATL, EVE, BYD, CALB, REPT, Hithium from tens to hundreds of Ah — for building your own batteries.
48 V rack batteries
5–15 kWh modules for residential and commercial solar systems — Pylontech, Dyness and others; compatible with Deye, Growatt and other inverters.
High-voltage ESS
Cabinet systems for businesses: battery racks, high-voltage BMS, hybrid inverters, monitoring systems.
Containerised BESS
Energy storage systems in containers with climate control, fire suppression and PCS — for power plants and industry.
UPS
Online UPS for server rooms, healthcare and production, modular UPS and battery cabinets for them.
Lead-acid and gel batteries
AGM and gel batteries from Narada, Leoch, Shoto for UPS, telecoms and backup power.
How we check this particular product
- Cell origin
- We request data on the cell supplier and grade, check markings and QR codes on the cells, and compare them with the stated manufacturer.
- Capacity and resistance
- We spot-test samples: discharge to rated capacity, internal resistance, cell voltage spread within a module.
- BMS and compatibility
- We check BMS protection functions, balancing and the communication protocol with your inverter (CAN, RS485) before shipping.
- System safety
- For cabinets and containers we check fire suppression, ventilation, climate control and emergency shutdown.
- Transport documents
- We check for a UN38.3 test report, a safety data sheet (MSDS) and correct package marking.
What to send for an accurate quote
- Purpose: backup, solar plant, peak shaving, off-grid power
- Required energy (kWh) and power (kW)
- Inverter model or system voltage
- Installation conditions: indoors, outdoors, temperature
- Quantity and timeline
- Delivery city
Shipping: what to keep in mind
Class 9 dangerous goods
Lithium-ion batteries are transported as dangerous goods (UN3480/UN3481). A UN38.3 report, MSDS, marking and certified packaging are required.
Air — with restrictions
Air freight of lithium batteries as cargo is strictly limited by state of charge and packaging, so main batches go by truck or rail.
Heavy cargo
Batteries and containerised systems are heavy: we calculate the load by weight, and ship containerised BESS as oversized or container cargo.
Documents and certificates
Uzbekistan
O‘zstandart certificate of conformity for items subject to mandatory certification. We check by HS code.
Kazakhstan, Kyrgyzstan, Russia (EAEU)
Requirements depend on the system configuration: UPS and systems with power electronics fall under TR CU 004/2011 and 020/2011. We check by the HS code of each item.
Dangerous goods
A UN38.3 report, MSDS safety data sheet and dangerous goods declaration for the carrier — mandatory for any country.
Requirements depend on the exact HS code. We check them before purchase and include the cost of certification in the quote.
HS codes and duty rates
| HS code | Product | EAEU CCT rate (KZ, KG, RU) | Calculate for your country |
|---|---|---|---|
| 8507 60 000 0 | Lithium-ion accumulators | 0% | Calculate |
| 8507 20 800 8 | Other lead-acid accumulators (AGM, gel) | 3% | Calculate |
| 8507 20 800 1 | Lead-acid traction accumulators | 5% | Calculate |
| 8504 40 300 8 | UPS and converters for IT equipment | 0% | Calculate |
| 8504 40 550 0 | Battery chargers | 0% | Calculate |
| 8504 40 870 0 | Inverters over 7.5 kVA | 0% | Calculate |
| 8507 90 800 0 | Other parts of accumulators | 0% | Calculate |
EAEU rates are taken from the official EAEU Common Customs Tariff (EEC Council Decision No. 80), excluding preferences and temporary exemptions. For Uzbekistan and other countries the calculator uses the rate of the selected country. The final code depends on the exact product description.
Questions about this category
How do you check that a battery has CATL or EVE cells?
We ask the assembler for cell purchase documents, check the cell markings and QR codes, and test samples for capacity and resistance. If the data do not match, we offer another supplier.
What are grade A and grade B cells?
Grade A cells are new cells that passed factory sorting by parameters. Grade B cells have deviations and sell for less. We fix the cell grade and manufacturer in the specification.
Is the battery compatible with my inverter?
We check the manufacturer’s compatibility list and the BMS communication protocol. Send us your inverter model and we will select batteries that work with it.
Can batteries be shipped by air?
Only with restrictions on state of charge, packaging and documents. For commercial batches, truck or rail is usually cheaper and more reliable.
Do you supply containerised energy storage systems?
Yes. We size BESS by power and energy capacity and check the system configuration, fire suppression and monitoring software. Production times follow the factory schedule and are fixed in the contract.
How long do rack batteries take?
Standard models depend on availability, usually 15–45 days. Delivery to Tashkent by truck takes 12–20 days, by rail 18–30 days.
Is there a warranty on lithium batteries?
We fix the warranty period and cycle count in the contract with the factory. For systems with monitoring, the warranty is usually tied to BMS data.
Send us a request and we will calculate it for your case
We reply within an hour during business hours. An offer with factory prices usually takes 3–5 business days.