Actually, no publicly released version actually works very well in this regard. I only realised that the behaviour was wrong when it started happening in my car and the battery symbol went away when I didn't expect it to.

Here's what happens at the moment in all publicly released versions of the software:

The power drops below the threshold voltage triggering the state save and turning the display off.

A few seconds later the display is turned back on but the powerfail indicator comes on. A timer routine is scheduled to run a few seconds later.

When the timer routine runs it checks whether there have been any further drops below the threshold in that time. If there haven't then the powerfail indicator goes out, otherwise the timer routine is scheduled for a few seconds time and the indicator remains visible.

This works well for momentary glitches such as starting the engine and erratic power sources but in the persistent low voltage case it does the "wrong thing"(tm). It is possible for the player to be unable to save state when power is lost (because the voltage is already below the threshold) but there is no indication of this on the display to warn the user.

Here's what our development source does (for both v1 and v1.1):

The power drops below the threshold voltage triggering the state save and turning the display off.

A few seconds later the display is turned back on but the powerfail indicator comes on. A timer routine is scheduled to run a few seconds later. (No change so far).

When the timer routine runs it checks whether there have been any further drops below the threshold in that time and whether the voltage is currently above the threshold. If there haven't and it is then the powerfail indicator goes out, otherwise the timer routine is scheduled for a few seconds time.

This is much better. If state save is not possible due to low voltage or an erratic power line then the indicator will be displayed.

I hope that makes the situation clearer. If anyone is suffering from problems with not remembering state or powerfail then email [email protected] and I'll try and send you this update to try so you can at least see what is going on.



--
Mike Crowe
I may not be speaking on behalf of empeg above :-)