QUOTE(condorstats @ Aug 14 2007, 01:54 PM)

When running from battery, the system will throttle and ration the power output to components, to allow the battery to last as long as possible. So if any component is being throttled to say 80%, the lost 20% is your lag.
In general,I wouldn't recommend running any games on battery, too much of a performance killer.
k becasue i still noticed lag yesterday while i was running from battery, ill try running without battery