Other Situations To Look Out For; Using Idle Time - Husky MP2500 Manual

32.3.5 Other situations to look out for

Some applications will have special power requirements not covered above,
but generally the same principles will apply for conserving power. That is,
when a feature is not actively in use, turn it off.
The situation described below can cause problems if not handled very
carefully and may require a lot of work to resolve. If battery life is a critical
issue it is essential to analyse the power requirements thoroughly to avoid
unnecessary or accidental high current consumption.

32.3.6 Using idle time

Some applications will use idle time, such as that available whilst waiting for
user input, to perform background tasks. These tasks may include things
like updating an on-screen clock, monitoring or optimising disk usage,
checking communications devices, etc. This should be avoided at all costs.
If it is absolutely necessary to perform such tasks they should be done
rarely so as to allow the BIOS to spend as much time as possible in STOP
mode.
One way to achieve this is to use the RTC alarm to schedule the tasks at
regular intervals rather than allowing them to be ongoing during idle time.
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