Tripp Lite's premium UPS replacement battery cartridges breathe new life into UPS systems suffering from expired or weak internal batteries. Each replacement battery cartridge is carefully screened and certified to meet or exceed original manufacturer specifications and ships ready for installation into your UPS system. Reusable packaging holds expired batteries for recycling center delivery. Compatible with a wide variety UPS brands and models. See Tripp Lite's UPS replacement battery web page to confirm compatibility and quantity required. RELIABLE PRODUCT FULLY BACKED AND SUPPORTED: This product is covered by a 18-Month Limited Warranty and is supported by Tripp Lite's Chicago-based expert technical support team over phone and email.