Power Save Features; Introduction - Husky MP2500 Manual

G.4 Power Save Features

Introduction

In some applications it has been observed that whilst the H FS/2
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computer will normally achieve a full working day of operation from a set of
charged batteries, an FS3 running exactly the same application may only
achieve between 5 hours. This is typically due to the application keeping the
FS3 continuously in full running mode, and not allowing it to use power save
modes. The same problem may affect MP2500, but to a much less extent.
If held in running mode the FS3 draws a continuous 320mA and this
equates to 5 hours with a 1600mAh NiCd battery pack. However, this
method of continuous operation was not a problem on FS/2, which has a
running current of only 110mA - easily giving a full working day on its
1400mAh battery, even if the FS/2 never reverts to power save.
In light of this it is very important for system designers to implement their
applications with power saving modes in mind. Although MP2500 uses less
power than FS3, it does draw a little more current from the battery than
FS/2. Consequently, MP2500 battery life also will benefit from attention to
power-saving techniques.
The following sections provide some key points to look for when making an
application power friendly and give brief tips on improving the performance
of existing applications to be ported from FS/2 to MP2500 (or FS3).
364 H MP2500 System Developer's Guide
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