Laptop Battery AVACOM for Acer Aspire 4920/4310, eMachines E525 Li-Ion 11.1V 4400mAh:Is your laptops battery life insufficient? The battery AVACOM for Acer Aspire 4920/4310, eMachines E525 Li-Ion 11.1V 4400mAh is a power supply replacement for selected Acer laptops. A laptop without enough power or a power cut wont take you by surprise. A backup laptop battery is suitable as a second battery for your travels when you cant access an electrical outlet, but still need to keep your laptop running. The battery comes equipped with 6 piece(s) quality cells and offers a capacity of 4400mAh. AVACOM for Acer Aspire 4920/4310, eMachines E525 Li-Ion 11.1V 4400mAh Battery Key Features Alternative Lithium-ion (Li-ion) battery Safe substitute for the original battery Capacity: 4400mAh, voltage: 11,1V Compatible with Acer laptops, specifically the Aspire and eMachines models Supplies your laptop with extra power if you happen to run out Delivers an improved battery life and allows you to work longer Tip: Frequent use affects the performance of the battery. Please adhere to the instructions on correct discharging and charging that can be found in the manual in order to reduce the risk of compromised performance.