[Elecraft] Low Battery Warning CCT?

[Eric Swartz WA6HHQ - Elecraft]

The K2 actually has an internal battery low indicator built in. It will flash 
a low battery message and beep when the battery level drops too low.

73, Eric  WA6HHQ
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Tony Wells wrote:
> Folks,
> 
> My Maine Coon kitten seems to have the teeth of a  tyrannosaurus rex  and the paws of polar bear. He managed pull one of my K2 leads off the power supply terminal. Fortunately I had my internal battery switch set to off, otherwise it would have drained without my noticing.
> 
> It set me wondering whether it would be worth fitting a battery-low detector and buzzer internally - perhaps Elecraft could consider adding this to their accessory list?
> 
> In the meantime, has anyone got any ideas on a low-cost, low component count cct this I could look at?
> 
> Regards,
> 
> Tony
> M3CJF
> G7IGG
>