My netbook with 1GB DDR2 RAM module takes 16% of battery for 24 hours of S3 standby mode (STR - Suspend-to-RAM). That amounts to the power consumption of 0.32 Watts in standby.
That also means that the computer may easily stay in standby for five full days on one charge, which is quite nifty.
I assume RAM is the main electricity consumer in STR mode, so I am wondering if an upgrade to a 2GB RAM module will increase standby power consumption and consequently reduce standby time anywhere near two-fold?
What is the relation between memory module capacity and its standby wattage?