[quote name='Woodinblack' timestamp='1482341663' post='3199759']
Has that ever happened to anyone? I can't think of a way you would do a circuit where it would actually cut out due to battery death, as batteries tend to get flat, not just die. As a result, you will just start to get clipping, and as most batteries discharge quite slowly with the sort of power an acitve circuit needs.
[/quote]
Not true - can't post them on my phone, but take a look at some battery charge graphs. They tend to lose a very small amount and then metaphorically fall off a cliff.