Hitech- 2 Batteries for O'Neil 550039-100, 320-081-122, MICRO FLASH 4T, MF4T, LP3, INTERMEC PB40, PW40 Portable Scanner Barcode Label Printers 2 pieces of Hitech OEM batteries for O'Neil MICRO FLASH 4T, MF4T, LP3, INTERMEC PB4 PW40 printers 100% OEM compatible, guaranteed to meet or exceed original specifications Chemistry:Li-ion, Voltage: 7.4V, Capacity: 2500mAh Replaces O'Neil battery models: 550039-100, 320-081-122 Made with Sanyo Japanese cells, battery pack made in Taiwan