<b>Model:</b> Replacement battery cartridge for the APC S20BLK UPS <br /> <b>Compatible:</b> APC S20BLK UPS ONLY - APC AV Black Network Manageable 1.25kW S Type Power Conditioner with Battery Backup - Check the model # on the back of your UPS to ensure compatibility. Or ask us and we'll help! <br /> <b>Condition:</b> Brand New, Fresh Stock <br /> <b>Includes:</b> APC S20BLK Battery Pack (plug & play installation) <br /> <b>Warranty:</b> 1 year full replacement warranty included <br /> <b>Life time expectancy:</b> 3-5 years <br /> <br /> <br /> The APC S20BLK battery pack is brand new, fresh stock. The battery pack arrives assembled and ready to be installed. Installation is plug & play. This new battery pack will restore functionality of your S20BLK A/V UPS to it's original state and provide you with more years of protection for your valuable A/V equipment.