9Ah general purpose battery. PowerWalker PWB12 battery series is designed to work with UPS solutions. It is a high quality valve-regulated lead acid battery with high corrosion resistance and special exhaust structure. The sealing technology with high discharge capacity offers long life, reliability and safety. Batteries are flexible for installation and maintenance and easy to handle.Design life is 3-5 years. The batteries feature low month self-discharge and low temperature coefficients, which means the battery will last long in good shape serving its purpose for the user.