FWIW... using 2500 mah and 2700 mah batteries, when the power starts going down, watch the deck closely, as the meter will show about 1/2 and 1 song later (may be 3-4 minutes) it was off and dead
Unknown to me, my charger was acting up... the cause of the situation. The deck seems to be fine
When the deck died, the files did not close correctly.
The files will open in CDWav (confirm the pop-up messages about errors) and then save the opened file and all is good.