China's Battery Manufacturing Landscape
China dominates global battery production, accounting for over 70% of lithium-ion battery manufacturing capacity. The industry is concentrated in several key regions:
- Shandong Province — Lead-acid batteries, industrial batteries, and UPS power systems. Strong export base to Middle East, Africa, and Southeast Asia.
- Guangdong (Shenzhen, Dongguan) — Lithium-ion batteries, consumer electronics batteries, power banks, and portable energy storage.
- Jiangsu / Zhejiang — EV batteries, solar energy storage systems, and home energy storage solutions.
- Fujian (Ningde) — Home to CATL, the world's largest EV battery manufacturer. Advanced lithium battery R&D and production cluster.
Key Supplier Screening Criteria for Batteries
- Safety certifications — UN38.3 (transport safety), IEC 62133, UL (US market), CE (EU), MSDS documentation. Battery safety is non-negotiable.
- Cell quality & sourcing — Are they using Grade A cells? Who supplies their cells? Cell quality determines battery lifespan and safety.
- Cycle life & warranty — What's the claimed cycle life at what depth of discharge? What warranty terms do they offer?
- Shipping compliance — Lithium batteries are classified as dangerous goods (Class 9). Verify the supplier has experience with DG shipping documentation.
- BMS quality — The Battery Management System is critical for lithium packs. Verify BMS specifications and protection features.
Common Product Categories
Lithium-ion batteries (LiFePO4, NMC), lead-acid batteries (VRLA, AGM, gel), solar energy storage systems, home battery backup (wall-mounted), EV batteries & e-mobility batteries, power banks & portable power stations, UPS batteries, motorcycle & automotive starter batteries.
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