CyberPower RB1290X3L Replacement Battery Cartridge, Maintenance-Free, User Installable Genuine CyberPower replacement battery cartridge. Tested and certified for compatibility to restore UPS performance to the original specifications. Compatible with the following models; OL1000RTXL2U, OL1500RTXL2U and BP36V60ART2U Cartridge includes; (3) 12V/9AH replacement batteries, wiring and connectors, replacement instructions, reusable package for expired batteries and recycling information Pre-assembled for easy installation. 18 month warranty BUY ONLY GENUINE CYBERPOWER REPLACEMENT BATTERIES! Buy only if the product says "Ships from and sold by Amazon.com"