Laptop Battery PATONA for ntb LENOVO Ideapad 300S/500S 3500mAh Li-Pol 7.4V, L14M2P21:Do you need to improve the battery life of your laptop? This model PATONA for ntb LENOVO Ideapad 300S/500S 3500mAh Li-Pol 7.4V, L14M2P21 is a source of energy for selected Lenovo laptops. A laptop without enough power or a power cut wont upset you anymore. A backup laptop battery is suitable as a second battery for your travels when it is not possible to connect your device to an electrical outlet, but still need to use your laptop. The battery features 3 piece(s) quality cells and offers a capacity of 3500mAh. PATONA for ntb LENOVO Ideapad 300S/500S 3500mAh Li-Pol 7.4V, L14M2P21 Battery Key Features Alternative Li-pol battery Safe alternative to the original battery Capacity: 3500mAh, voltage: 7,4V Provides your laptop with power when youre travelling Ensures a longer battery life and allows you to get more work done Tip: Frequent use causes the battery to wear out. Please adhere to the instructions on correct discharging and charging that can be found in the manual to prevent capacity loss.