1 preparing neo for operation, 1 the battery, 1 charging the main battery – Psion Teklogix NEO PX750 User Manual
Page 23: 2 backup battery power, 2 switching neo on and off, 1 installing the battery and switching the unit on, Preparing neo for operation 2.1.1, The battery 2.1.1.1, Charging the main battery, Backup battery power
