Well, there appears to be no signs of an increased battery life, which doesn't necessarily mean it's true, because after all, this slim console and dualshock 4 revision haven't even been officially announced, but if they truly did leave the PS4 battery the same, then there are two conclusions we can draw here
1. sony don't give a fuck
2. the neo controller will have the better battery life and this dualshock 4 revision didnmt get a battery upgraded due to the goal of releasing as cheap a console as possible