The RB1290 UPS Replacement Battery Cartridge restores life to UPS systems that have weak or completely depleted internal batteries. The RB1290 contains one 12V/9AH battery, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. Supplies high surge currents and provides robust power-to-weight ratios. 1.5-year limited warranty. Black.