What type of batteries are typically installed in UPS units?

Lead Acid Cell batteries are commonly used in Uninterruptible Power Supply (UPS) units due to their reliability and cost-effectiveness. These batteries have a proven history in applications that require steady power supply, making them suitable for backups during power outages. They are known for their robust performance, long cycle life, and ability to deliver high surge currents, which is essential for powering devices that need immediate back-up power.

Moreover, Lead Acid batteries have a well-understood chemistry, making them relatively easy to manage in terms of charging and maintenance. They can hold their charge for a long duration, providing sufficient power when needed. In environments where cost considerations and performance under load are critical, Lead Acid batteries stand out as a preferred choice for UPS systems.

While Lithium-Ion batteries are gaining traction for their lighter weight, higher energy density, and longevity, they are less commonly used in traditional UPS setups primarily due to their higher cost and specific management requirements. Nickel-Cadmium batteries, while used in some applications, are less favored due to environmental concerns and limited capacity compared to Lead Acid options. Alkaline batteries are generally unsuitable for UPS systems because they are designed for one-time use and cannot withstand the repeated charge and discharge cycles typical of UPS applications.