Li-ion notebook batteries opens up new mobility and usage possibilities of your devices. These batteries are manufactured using new, high-quality, balanced features, rechargalbe cells that ensures the longest battery life and maximum capacity. These batteries do not have “memory effect,” so they can be recharged at any time convenient for the user.Unique microcontrollers used in batteries: - Protects the battery from overload, overheating and ignition;- Optimizes the discharge settings to maximize battery capacity;- Ensures device safety during both heavy load and standby mode.The battery is suitable for the following computer models:G551G551JG551JKG551JMG771G771JG771JK The battery is suitable for use instead of these original battery models:G551N551N751G58G771A32N1405Technical specification:Capacity: 5200 mAhElement type: Li-PoVoltage: 11.1 VColor: blackNotes: The list of compatible batteries and computers may not be complete. In case of doubt, always consult a consultant.Warranty: 9 monthsManufacturer: Extra Digital