ups battery An uninterruptible power supply (UPS), also known as a battery backup, provides backup power when your regular power source fails or voltage drops to an unacceptable level. A UPS allows for the safe, orderly shutdown of a computer and connected equipment. UPS is stands for uninterruptible power supply and it provides undisrupted power supply during power surge and failures. UPS battery is the main power source of UPS. There are different type of UPS batteries are available in market. Some of the popular UPS battery types are: Valve Regulated Lead Acid: It is widely used ups battery in ups today. Flooded or Wet Cell Battery: These type of batteries have very long life and can lasts upto 20 years. Lithium Ion Batteries: These are popular among electronic devices like laptop and mobile. Lithium ion batteries are light weight and smaller in size. Now these are getting popular among the UPS and good choice for ups replacement battery. These have high recharge and discharge time making them a popular choice. Nickel-Cadmium UPS Batteries: These types of batteries are in demand where temperature remains high. These batteries can last upto 20 years, therefore, they are far more expensive than traditional batteries.