[mulhiny]

The only way to really know talk time is to fully charge and then only use the phone to talk..who buys a ppc and does that? I'm not trying to be funny, but I prob use my phone as a "device" first and "phone" second. So to give the best answer that I can I would say this; Overall a custom ROM gives me better battery life than stock. VERY noticeable difference. Some ROMs better than others. I currently use Mighty ROM 3.9, a little old, but best battery life for me. So even if your "talk time" is the same stock or custom, custom is the way to go because everything else will be better, faster, and overall better battery life.