My battery life on the 640 is a bit of a problem, perhaps I could air that here? Not very long. Only long enough if I have my screen set at awake for a paltry 3 seconds. Which have to admit hasn’t caused too many blasphemies but is a bit of a bind.
but not half as irritating as the icon that tells you how much insulin is left in your reservoir. As I don’t need much and have the smaller reservoir, every time I refill it it is already on red. Which gives me no visual alert at all as to how long I have to go.
Battery icon is fine. But the alert often doesn’t alert until only 30 minutes battery life are left. Particularly irritating in the middle of the night!