TechOrbits Laptop Battery BTY-M6D MSI GT60 GX60 GT70 GT660 GX60 GT660(R) GX660 GT680 GX680 GX780 GT780 GT780R GT663R GT660R - 3 Years Warranty Over 1 million+ happy customers since 2010 Energy Efficiency: Max Utilization Technology insures that the battery is always in-sync with your power settings to give you maximum battery life for every charge. Premium Components: Our batteries are beautiful on the inside and out! This battery features a Texas Instrument main board, state of the art over circuit protection, and highest grade lithium polymer cells. Longest Warranty: TechOrbits batteries are built to last; that's why we cover our batteries with an industry best 3 years warranty. Technical Specs: 6600mAh; 11.1 Volts; 9 cells; Li-ion