This one is for those of you who have owned, or are current owners of any Samsung smartphone.
In a nutshell - what's been YOUR experience with the phone's battery life under moderate to heavy use? Did you have to upgrade the battery right out of the gate? Or was the stock battery sufficient? How does Samsung's battery management compare to other brands that you have owned? Any and all input would be greatly appreciated!
It's hard to say, becuase past experience doesn't necessarily translate into future product performance.
The Fascinate had poorer battery life than the Droid X, but was light years better than the DInc. Thunderbolt was worse than DInc, but Charge better. GalaxySII seems to be decent from initial reports, but far from great.
HTC does seem to have a track record of very poor battery performance, partly because of thier use the the Qualcomm Snapdragon SoC. Current iterations are just battery hogs, and no amount of power management is going to help.
Samsung has traditionally used thier own designed Hummingbird SoC for many of thier recent models, and battery performance has been midrange, for the most part. Standby isn't bad, but movies and graphics will drain the battery pretty quick.
Moto used a lot of Ti OMAP SoCs (Tegra in a few recent models), and battery performance has been OK. About a days use with some typical use.
So with the rumors that the Prime will have the OMAP 4460, that may give you a slight indication. Or will it have the rumored Exynos 4412? Either way, neither of these SoCs is available in a mobile device so its uncertain what the battery life is expected to be.
4G also throws a wrench into the equation, so when in a 4G area, you can expect the phone to draw more power.
But by far, the screen is the single largest power drain, so a lot hinges on that. Pentile helps the power consumption, but 1280x720 is a lot of pixels to push, so my guess is that it will drain pretty fast with the screen active. My guess is that this phone will not be a great battery performer.
That's just my educated guess.