3S (11.1V) 18650 Lithium-Ion Battery Pack Manufacturer In China
Welcome to Hanery’s dedicated page for custom 11.1V (3S) 18650 battery packs. By connecting three high-performance cells in series, we deliver a robust 11.1V platform—the industry standard for driving demanding motors and high-draw electronics. Our expertise in precise cell matching and advanced 3S BMS design ensures unmatched power, safety, and longevity for your professional equipment.
Advanced 3S Balancing
Industry-Proven 18650 Core
Engineered for High Discharge
Competitive Wholesale Pricing
Bespoke Pack Geometry
Safety
Low Self-Discharge
Long Lifespan
Reliability
11.1V 3S 18650 Li-ion Battery Pack Supplier In China
Hanery is your specialist B2B supplier for custom-engineered 11.1V (3S) 18650 battery packs. The 3S configuration is a crucial stepping stone in power delivery, widely adopted in professional robotics, high-end medical devices, and robust power tools where 7.4V simply isn’t enough. Designing a safe and long-lasting 3S pack requires a deep understanding of cell dynamics. Our engineering focuses heavily on minimizing internal resistance and implementing a high-quality Battery Management System (BMS) capable of precise active or passive balancing across all three series nodes.
As a direct manufacturing partner, we don’t just supply batteries; we engineer integrated power solutions. We guide you from selecting the optimal base cell—balancing capacity versus discharge rate—to designing a durable enclosure and managing the complex global certification process, ensuring your 11.1V product is powered for success.