I just got T42p, and dual booting XP Pro and FC4. On XP PRO I have this really nice feature that will prevent battery from being recharged untill it falls to certain percentage. Thus it prolongs the batter lifespan, because it's not being constantly recharged. Is there a similar feature in FC4, or maybe there is a third party software that does it? Only thing I found in FC4 is utility that showes battery status, and warns when it's 100% charged.