CyberPower RB1280X2 Replacement Battery Cartridge - 2 X 12 V / 9 Ah Sealed Lead-Acid Battery

Lead Acid battery chemistry delivers the required energy to UPS through an easily controlled reaction Solution for a battery that is about to expire, so you can replace it whenever needed With 12 V DC battery, never run out of power and keep your UPS operational at all times Has higher capacity compared to other lead-acid batteries