http://biz.gamedaily.com/industry/feature/?id=17519
"The rumble feature on the DualShock 3 is the same as DualShock 2."
As for battery life:
Otzman said that "battery life depends on how often the rumble feature is used." She added, "When the rumble feature is completely turned off, it's equivalent with the Sixaxis (maximum of 30 hours) and when the rumble feature is active it's about 15 hours, under SCE standard testing conditions."
"The rumble feature on the DualShock 3 is the same as DualShock 2."
As for battery life:
Otzman said that "battery life depends on how often the rumble feature is used." She added, "When the rumble feature is completely turned off, it's equivalent with the Sixaxis (maximum of 30 hours) and when the rumble feature is active it's about 15 hours, under SCE standard testing conditions."