The CyberPower RB1270X2B UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries; It comes with two 12V/7Ah lead-acid batteries SEALED LEAD-ACID BATTERIES: Supplies high surge currents, provides robust power-to-weight ratios, and cost effective; MAINTENANCE-FREE BATTERY FLUID: Never requires replacement USER-INSTALLABLE CARTRIDGE: Allows for quick and convenient installation; each cartridge is pre-assembled; The RB1270X2B comes in reusable packaging for delivering expired batteries to recycling centers Compatible with these CyberPower models: PR750LCD, PR750LCDTAA 18-MONTH WARRANTY: Covers defects in materials and worksmanship in the product under normal use and conditions within eighteen months of the purchase date