The FirstCity Solar Tubular Battery 220Ah is a robust, deep-cycle tubular battery designed specifically for solar and inverter applications, offering reliable power backup in off-grid and hybrid systems. With a high capacity of 220Ah (C20 rating) and tall tubular plate construction, it delivers excellent performance in frequent deep discharges and harsh operating conditions. Built with low-antimony alloy and high-pressure die-cast spines, it ensures low maintenance, long service life (typically 5-8 years), and superior resistance to corrosion. It is an ideal choice for homes, offices, and solar installations requiring dependable, long-lasting energy storage.