SUNPOK sodium-ion battery adopts next-gen sodium cell tech, featuring 10,000+ deep cycles and outstanding low-temperature performance, retaining over 85% capacity at -20°C for stable power supply in frigid regions. Inherently safer with low thermal runaway risk, they support full 0V deep discharge without damage and faster charging speed. Equipped with intelligent BMS and DC breaker, max 15 units parallel expandable, fully compatible with mainstream inverters. Cost-effective and eco-friendly, all models pass global certifications, ideal for residential & light commercial solar storage in cold climate areas. Find sodium ion batteries manufacturer? Contact SUNPOK for best price!