I am usin lenovo in my shope.It has more than 4 hour battery back up. No any problems
arsing in the working period.all are function working smoothly.No hanging system
and this laptop is that it suppot many service like 4GM RAM .1year warranty and
graphic cards which I love most.user friendly-Its s user friendly because it display
and good sound system to sing a song
I never visit to tech to technical support center but I think lenovo
provide customer satisfied solution
thank you