T500: How long does the battery last while unplugged?

[zero0]

Don't have that issue. I left my laptop for 2 months and it has somewhere between 50~85% power.

[ggruen]

@matram  No confusion here on power states.  I'm definitely powering off.  I've tried turning off pretty much everything in the BIOS with no luck.  If I take the battery out, it loses almost no charge, so it's not a self discharge problem either.  I may end up contacting Lenovo about it. 

[icarni]

@ggruen: My battery was inside the T500 and this was into the docking station with this unplugged and un-powered the whole period during vacation. I now remove battery from the notebook and will wait about 10 days to see how much charge disappeared.

Most likely it makes a difference whether the battery is inside the notebook inside the docking station (even unpowered) or totally off tthe unit ...... I guess.