200Ah with 12Month* Warranty Hadi Tall Tubular Battery Superior quality is what distinguishes an extraordinary product from an ordinary one. All inverter batteries can function normally in the same way, but what makes OKAYA batteries exceptional is their state-of-the-art technology, premium raw material, and in-house manufacturing. With OKAYA batteries, forget about those power outages. The batteries are manufactured with the exceptional 100% Hadi tubular technology that provides unmatched performance.