Original Asus B21N1505 Laptop Battery Original: * Standard size battery made from original lithium polymers or lithium ion new cells* High quality, balanced performance cells ensure battery charging up to 600 times* Provides the highest security and maximum efficiency, no memory effect* Choice of customers with the highest quality and safety standards Battery compatible with computer models: E402E402SE502SE402ME402MAE402SA Battery for replacement battery models: B21N1505 Notes: The list of compatible batteries and computers may not be complete When in doubt, always consult a consultant Specifications: Capacity: 4200mAhItem Type: Li-PolVoltage: 76 V Warranty: 12 months Manufacturer: Asus Important Information! Dispose of used batteries and accumulators in special containers marked with a collection symbol for batteries and / or accumulators