Quote:
Originally Posted by guguy
When performing heavy calculations the cpu of the PRS-700
(freescale i.MX31) consumes about as much at 533mhz than the one of the
PRS-500/505 (freescale i.MXL) at 200mhz, that's to say around 1W
(according to datasheets). And the i.MX31 includes much more efficient
power saving capabilities. The epson controller may need more juice but
definitely not enough to drain the battery life significantely faster.
So the only factor remaining is the screen, since it's the same one as on the 505
with a pressure-sensor touchscreen it means it consumes as much
as the one of the 505 when the touchscreen isn't used and you would really
have to use it intensely to drain the battery in five hours !
Conclusion : the guy who told you that is definitely smoking too much
weed.
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Actually, the touchscreen is one of the main reasons for the battery drain. It is constantly powered, since it has to always be ready for your touch.
So while I do think 5 hours is a bit low, the battery is nowhere near as good as the 505.