Original ACER GRAPE32 11.1V and 4000mAh (44Wh), ideal to replace the exhausted storage of your Acer Extensa laptop. This Lithium Ion battery provides long-term autonomy, power stability and reliable performance for models such as Extensa 5220, 5310, 5230, 5720, 5630, 5635 and 7220. Designed with high quality cells, it offers integrated protection from overload and deep discharge, ensuring safety and durability. Perfect for those looking for an original replacement that maintains the technical specifications of the manufacturer. Voltage: 11.1V Capacity: 4000mAh (44Wh) Technology: Li-Ion (Lithium Ions) Number of cells: 6 batteries Overload protection: Yes Deep discharge protection: Yes Compatible Brand: Acer Compatible product lines: Extensa Compatible Models: 5220, 5310, 5230, 5720, 5630, 5635 and 7220 Simpletek Warranty and Assistance Product assembled and tested by Simpletek technicians in Arezzo. Each unit is verified for quality and reliability. Included 1 year warranty on refurbished products and dedicated technical support. Simpletek - Italian quality since 2010. Products assembled and tested in Arezzo.