Valve Regulated Lead Acid Batteries
The DataSafe HX series of valve-regulated lead-acid high rate discharge batteries from EnerSys Inc. utilizes a polypropylene container that improves high-temperature performance and increases vibration resistance. These batteries are rated at 200 to 500 watts per cell in the 12-volt configuration. They incorporate gas recombination technology so that a minimal level of gas is evolved from the battery so it may be located in offices or near other electronic equipment. A low-pressure non-return valve acts as a self-regulating relief valve and prevents atmospheric oxygen from entering the cells. VRLA batteries are frequently used in uninterruptible power supplies for computers.