The Hamko TinCa Green NX120-7L is a 12V 80Ah sealed zero-maintenance battery made with Tin-Calcium Alloy Technology to deliver amazing starting power, low self-discharge and solid resistance to high engine heat for compact and mid-size passenger vehicles and also as IPS backup systems. Zero Maintenance: The battery has a completely sealed design so you never have to check or refill water. Tin-Calcium Alloy Technology: Built with tin-calcium alloy to withstand high heat and hold a charge much longer. Instant Engine Start: Delivers smooth and quick engine starts easily in all weather conditions. Reliable & Long-Lasting: Keeps a stable charge to ensure long-lasting battery life. Leak-Proof & Durable Body: Has a solid outer shell that protects against vehicle movement in harsh situations and prevents acid leaks