If that's truly the case, the battery % charge meter would count down running *any* CPU and/or GPU intensive application. To think that Flash somehow consumes more battery than any other CPU-pegging (not tough to do on an 8-year-old PC) process is to show a fundamental lack of understanding about how computers work.
--Jeremy
On any laptop I've used running the CPU at 100% reduces the battery life to less than a quarter of what it normally is. The issue is that there's no reason web browsing should be a CPU intensive task (besides poor programming). An iPad gets 10 hours of web browsing. It's completely inexcusable for my laptop which normally gets 8 hours of battery life to get only 2 hours of web browsing because flash is enabled.
Function reject.