[oldhasbeen]

I notice on my new Aura H2O that I have to recharge significantly more often than I had to with my Sony PRS 950. I have never really used it with Nickel because of the poor PDF support and the way books are accessed (that database thing!).
I have KSM 08 and Koreader.
I am a hardware person but have not yet measured the battery current under suspend conditions because I did not want (yet) to break the waterproofing seal.
At this stage I investigate non-intrusive. I place the Aura H2O near the ferrite antenna of an AM radio receiver and observe on the speaker the emission and modulation pattern from the reader.
The noise emitted when Nickel is used is significantly less and quite low in suspension mode.
It is high with the KSM 08 and remains high when Koreader is activated. Suspending the reader while in Koreader does not change that high noise level - that means that the reader (CPU$) is always running at an elevated power state even though the screen and Koreader is in standby and only little power should be consumed.

I assume that KSM is always running in the background and eating battery - even when Koreader (and therefore the device) is put into suspension.

Is there a way to switch off (or suspend) KSM when Koreader (and the device) is suspended?