Okaya is the only brand in the world to mention the actual backup hours of the inverter battery transparently on their packaging at various power consumption levels, making us the world's first to provide Certified Backup Hour (CBH). All our batteries undergo rigorous testing and certification by NABL-accredited labs and are proven to outperform many other brands in the market. Powered by the new cutting-edge technology - Xtra Backup Design (XBD), our batteries ensure extra backup time more than other batteries in the market. With XBD technology, you'll enjoy enhanced performance and longer backup.