Factory Direct · MOQ 1 Piece · Ships from Shenzhen + local warehouses in EU, Spain, US, Germany & Poland · 5-7 day delivery
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Factory & Production

2Manufacturing Bases
15Years Experience
250Workers
7,500Factory Area (㎡)

QSO has 15 years of experience in the LiFePO4 battery industry with a professional R&D team and strict quality control, dedicated to LiFePO4 battery research and production.

We specialize in LiFePO4 cells, battery packs, BMS, DIY kits and one-stop service for home energy storage and backup power. With 2 manufacturing bases, 250 workers and a 7,500㎡ factory area, QSO is your reliable partner for sustainable energy solutions.

Production Process

QSO factory building aerial view
Production Base
Workers in QSO production workshop
Production Workshop
QSO operation center and office
Operation Center
QSO assembling line, debugging and welding process
Assembly & Testing Lines

Quality Control System

1. Incoming Cell GradingAutomated high-precision capacity & IR testing; only Grade A EV-class cells enter production
2. In-Process ControlMaterial inspection records and supplier assessment at every workstation
3. End-of-Line Testing100% full charge/discharge cycling plus BMS logic verification before packaging

Company Facts

Manufacturing Bases2
Years of Experience15
Workers250
Factory Area7,500 ㎡
Founded2016, Shenzhen, China
Nearest PortShenzhen Port
Overseas WarehousesEU · Spain · US · Germany · Poland (5-7 day delivery)
Main MarketsWestern Europe 60% · North America 10% · Oceania 10% · Middle East 10% · South America 5%
Production RangeLiFePO4 cells (50Ah-628Ah) · battery packs (12V-51.2V) · DIY kits · BMS · one-stop service
R&D CapabilityProprietary BMS architecture: CAN/RS485 communication, active balancing, multi-layer temperature protection, cloud monitoring
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