Abstract: A wireless communication system for servicing personal communicators is connected to a a digital switch of a landline telephone network. The communication system includes a plurality of wireless communication base units, each having wireless circuitry enabling it to extract channel and setup information other from nearby wireless communication base units. Each unit measures the RSSI of channels of neighboring wireless communication base units and makes channel assignments to a base unit in response to RSSI measurements being compared to a threshold.

Abstract: A battery support housing, as part of a battery handle arrangement, is provided to enclose a substantial portion of a batteries' outer casing. The housing includes a pair of arrayed slots in each of two opposing sides of the housing. A band of webbed material is continuously threaded through all the slots with a sufficient slack in the band between the upper pairs of slots at the two opposing ends to allow a hand grip of the band. The ends of the band are secured to the housing by circularly threading the band through adjacent slots in each of opposing sides of the housing by at least two turns.

Abstract: A reserve time predictive system for predicting the capacity of a discharging battery monitors the instant voltage of a battery, its discharge rate and a slope of the voltage vs ampere-hours removed from the battery. The discharge profile of battery voltage vs ampere-hours removed, and the difference between the present and end voltage and the slope of voltage vs ampere-hours remaining is utilized to determine a prediction of reserve time remaining until the battery discharges to the specified end voltage. A combination of remaining reserve time and the measurement of capacity removed also determines the available capacity of the battery from a fully charged state. This information is used as historical data for use in subsequent predictions of battery capacity.