I have just bought the Varia 315 to go with my Edge 830. I have yet to try the Varia (tomorrow I hope).
The stated battery life of the 315 of 7 hours seems a bit skimpy, especially if in the real world it doesn't make it to 7 hours. As I often stop for periods of time on a trip I would like to be able to put it to sleep/standby. Testing this at home, if I sleep the 830, the Varia also sleeps. However, when I wake the 830, the Varia stays asleep and the 830 cannot connect to it without me pressing the button on the Varia. Is this correct? Is there any way to have the Varia wake up when the 830 is woken up?