i am about to buy this MSI GX660 laptop but one thing that concerns me is the battery. actually, just 6 cell battery is available right now in this model and i am a bit concerned as i am buying this laptop for gaming purpose only. so , do you think that 6 cell battery will do fine or 9 cell battery is a must for this laptop. Here are the system specifications: PROCESSOR: core i5-460M, RAM: 4GB DDR3(2GB*2), GRAPHIC CARD: ATI Radeon HD5870(1GB DDR5 dedicated graphics), CHIPSET: PM55, HARD DISK: 500GB SATA @5400rpm, SCREEN/RESOLUTION: 15.6" HD, Glare (1366*768) LED
How offten will you be using the Laptop without the AC adaptor pluged in?
Look at advertized Battery life - you can expect from 50 -> 60 % battery life under load, ie Playing a DVD movie, or heavy HDD activity.
I prefer the 9 Cell battery pack - Like to watch DVDs on plane. Note, not all Li-ion batteries are equal - there are about 6 diff chemical compositions with slightly diff voltage/watt-hr ratings.
If at home you will normally be pluged in so quest is mute.
When away from an outlet, just remember operating time will be about 1/2 advertized while gaming - If that is excepable then 6 cell is fine.
Another point to consider is battery life (not running time). How long the battery will last before needing replacement is highly dependent on the number of discharge/charge cycles - A nine cell will probably last you longer before needing replacement. (Time measured in years)