The CyberPower RB1270B UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries; It comes with one 12V/7.2Ah sealed lead-acid battery SEALED LEAD-ACID BATTERY: 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 RB1270B comes in reusable packaging for delivering expired batteries to recycling centers Compatible with these CyberPower models: AVRG750U, AVRG750LCD, CP685AVRLCD, CP585LCD, CP600LCD, CPS585AVR, CPS625AVR, CP685AVRG, OP650 18-MONTH WARRANTY: Covers defects in materials in the product under normal use and conditions within eighteen months of the purchase date