APC Symmetra Rack-mountable Power Array Cabinet - 240 V DC - Lead Acid - Hot Swappable - 3 Year Minimum Battery Life - 5 Year Maximum Battery Life

Sealed Lead Acid (SLA) battery chemistry delivers the required energy to UPS through an easily controlled reaction 2448 VAh capacity - Ensures secure power flow Offers extended battery life for associated critical loads Safer compared to other lead-acid batteries, while its spill proof design makes it the perfect power source for your critical devices With 240 V DC battery, never run out of power and keep your UPS operational at all times