After the formal launched of the 17 inch MacBook Pro by Apple.. which the battery can continously used for 8 hours, by powering the 17 inch MacBook Pro using the NVIDIA 9400 GPU or 7 hours if using the 9600 GT. Good to say that MacBook Pro Battery can charge up to a thousand times after the total replacement, and it will cost about $179 to have a new set of battery that Apple should replace.. Read More!! [Mobilewhack]