How does the Psion measure the battery usage?
Actually, the battery consumption is only estimated, there is no real voltage meter inside the Psion. The Psion knows the average battery consumption in each state (ie: xx mA when playing a WVE file; yy mA when writing on flash … ) and keeps a record of the time spent in each state. When the voltage drops below a threshold, the “replace batteries” and “emptying batteries” display appear.
