SolaHD S4K2UC 3000VA S4K2U3000C, E3000RMT2U battery replacement kit is shipped fully charged and tested to ensure you the highest quality possible and comes standard with High-Tech Battery Solution's unbeatable two year no-hassle warranty. All sealed lead acid batteries purchased from High-Tech Battery Solutions are designed specifically for the deep-cycle stand by use associated with all SolaHD battery backup systems. Our batteries are of the highest quality on the market and are guaranteed to perform to or surpass OEM specifications.