Battery Universe has been selling sealed lead acid batteries since 1999. Our staff can help you in determining the best battery for your needs. Sealed lead acid is a rechargeable chemistry, and fits in many different types of units, such as UPS's, alarms, emergency lighting, medical equipment, and other products. Please call us at 800-995-9750 and let one of our salespeople help you. If you are looking for a battery and can't find it, please let us know.