The Inverlast series consists of heavy-duty, Tall Tubular batteries specifically engineered to handle the high demands of electrical appliances during extended and frequent power outages. These batteries are made with a special grade of Lead alloy, ensuring their suitability for a wide range of applications, including HRD (High Rate Discharge) and SFC (Standard Frequency Crystal). A standout feature of these batteries is their Orthogonal 3D grid design, which plays a crucial role in providing unparalleled electrical performance. This innovative grid structure boosts both the efficiency and longevity of the batteries, making them a dependable power source in situations where a consistent and reliable energy supply is essential.