World’s First – Certified Backup Hour

At OKAYA, we don’t just promise backup—we prove it. OKAYA is proud to be the world’s first inverter battery brand to transparently declare the Certified Backup Hour (CBH)—the actual backup time you can expect from your battery, tested under controlled conditions using the Urban Metro Heavy Duty (UMHD) load cycle.

This initiative is backed by our advanced Xtra Backup Design (XBD) technology, ensuring longer, reliable power backup across a range of power loads. Now, it's easier than ever to choose the right battery for your energy needs—with full clarity and confidence.

Okaya Power: Certified Backup Hour

CERTIFIED BACKUP HOUR (CBH)

  • Actual backup hours clearly mentioned on every packaging—so you know exactly what you’re getting
  • CBH is determined using the UMHD load cycle, a standardized test developed by OKAYA for real-world accuracy.
  • All CBH ratings are verified and certified by NABL-accredited laboratories, delivering trusted performance you can rely on.
Okaya Power: CBH Chart

Test Conditions

Setting the standards for Test conditions:

  • Constant current charging till TOC ≥15.5V
  • OCV: 12.50-12.70V
  • Specific Gravity: 1.25-1.26
  • Temperature: 27±2°C
  • Cut off voltage at the end of discharge: 10.5V

Disclaimer

Important Considerations for Battery Performance and Backup:

  • Battery backup varies with ambient temperature, battery age, inverter used and State of Charge (SOC) conditions
  • Charging through inverters does not result in 100% SOC
  • Certified backup hour can be achieved after three Charge-discharge cycles on a new battery
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Xtra Power for Xtra Comfort with XBD Technology

Experience high performance and extended backup with specially designed active material and Xtra backup design

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At OKAYA, we offer a wide range of power solutions for various applications. Take a look today!

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