Product Description Detailed Specs Downloads Reviews/Questions Product Description ET4X 10EXPANSION BACK FOR POWERPACK EXTERNAL BATTERY FOR 10IN Detailed Specs null null null null null null null null null null MFG Part Number ZBK-ET4X-10BTRYBK101 Product Type Accessory Product Family ET40, ET45 Downloads Reviews/Questions The Zebra ZBK-ET4X-10BTRYBK101 is also known as ZEB -ZBKET4X10BTRYBK101 or ZBKET4X10BTRYBK101