Looks like RIM would have a hard time trying to bring the BlackBerry PlayBook on sale to the masses on schedule. According to analyst Shaw Wu, the PlayBook which is undergoing tests right now is suffering from a rather uninspiring battery life. This, RIM wants to fix before the tablet hits production. For the same reason, Wu expects the PlayBook launch to be delayed until Spring 2011.

Wu said that RIM is trying to  ”improve its relatively poor battery life of a few hours compared to 6 hours for the Samsung Galaxy Tab and 10 hours for the iPad.”. He also adds that BlackBerry’s QNX OS is the main reason for the increased battery consumption which seems to be plagued by poor power management.

Note that this news is still a rumor. RIM is yet to confirm this news. But then, we think, unless the situation is very drastic, RIM would just postpone the launch for “technical reasons” – rather than announcing that there is a battery issue.