OPzV Battery 2V Tubular Gel Battery for Solar Energy Storage and UPS Systems. Engineered with advanced tubular gel technology, this long-life battery offers exceptional reliability and deep-cycle performance, with a design life of up to 20 years and 300-500 charge cycles. Ideal for renewable energy systems, uninterruptible power supplies (UPS), electric bicycles, and industrial power tools, it ensures stable and efficient energy storage. Constructed from high-quality ABS material, it meets international standards including ISO, CE, RoHS, and IEC, guaranteeing safe and durable operation across diverse applications.More