Axion Power International, Inc. develops, designs, manufactures and sells energy storage components and devices based on its patented PbC technology. The company is headquartered in New Castle, Pennsylvania. The company went IPO on 2001-06-21. The firm has developed carbon/lead batteries, and integrates its batteries into energy storage systems, renewable energy systems, off-grid applications, automotive and other applications. The firm sells batteries, energy storage systems and engineering services as part of its product offerings, and can assist battery end users to adapt its batteries to various applications. The firm's lead carbon (PbC) batteries and battery components have application in a range of energy storage systems. The company focuses on various areas, such as power grid stabilization, micro-hybrid vehicles, hybrid commercial trucks, automated guided vehicles, and off-grid and renewable energy storage. Its PbC battery technology is a hybrid asymmetric energy storage device. The firm manufactures lead-acid batteries for sale under the Axion brand name at its Clover Lane facility in New Castle, Pennsylvania. The firm also offers the PoweCube.