Well then, Arduino don't take that much current and can be put to sleep also.
Perhaps just add an additional Lipo 7v4 pack and charge occasionally.
Not difficult to add it's own supply monitor and alarm if necessary.
Well then, Arduino don't take that much current and can be put to sleep also.
Perhaps just add an additional Lipo 7v4 pack and charge occasionally.
Not difficult to add it's own supply monitor and alarm if necessary.