Why choose us

There are plenty of Chinese lithium battery suppliers. The difference usually shows up not at the pricing stage but on the second shipment — when someone has to solve a problem rather than close a sale.

A factory, not a middleman

We manufacture in-house: 2 production bases, 10 automated lines, 10,000 m² of dust-free workshops. You buy at factory price with no trader markup and speak directly to our engineers.

100% in-house BMS

Hardware and firmware are developed by our own team. CAN / RS485 support, compatibility with Deye, Growatt, GoodWe, SMA and INVT inverters. Protection algorithms are tuned to your project.

Warehouse in Russia — stock nearby

One of our 9 overseas warehouses is in Russia. Fast-moving SKUs can ship from local stock instead of waiting 40+ days by sea. Seasonal top-ups take days, not months.

Customs paperwork in order

EAC certification, CE, UN38.3, RoHS, UL, IEC 62133, test reports, MSDS and shipping documents are supplied as a package. We help prepare the file for EAEU requirements.

Your brand on our product

Full white-label: logo, enclosure colour, capacity, connectors, packaging, Russian-language manual. MOQ is negotiable — we start with a trial batch.

Support after shipment

A dedicated engineer, 24-hour response, drawings and firmware, spare parts, claim analysis from photos and BMS logs. Battery warranty — 5 years.

Factory vs. middleman

Who is responsible for defects	GreenOE: We do. Analysis from BMS logs and photos; the outcome is replacement or compensation. A middleman forwards the question to a factory and waits alongside you.
Can the design be changed	GreenOE: Yes: capacity, connectors, enclosure, BMS firmware, packaging. Only what the contract factory already has on the shelf.
Where the price comes from	GreenOE: Production cost plus our margin. One markup layer. Factory price plus trader markup. Two layers at least.
What about batch consistency	GreenOE: One line, one cell-grading method, one test protocol. Batches may come from different factories — you find out after the fact.

Our Partners

We collaborate with industry leaders across sectors such as automotive, aerospace, and consumer electronics to develop high-quality, tailored products and solutions that meet the specific energy storage needs of our customers.