External Laptop Battery Charger for Dell Latitude E5420, E5520, E6420, E6520 Series Rating 10.8v or 11.1v Laptop Battery This charger is for rating 10.8v or 11.1v battery, NOT for 14.4v or 14.8v battery. If your battery is 14.4v or 14.8v, please notify us after placing an order from Amazon Input Voltage: 100 ~ 240V AC 0.24~0.60A 50/60Hz Output Voltage: +12.6V DC / 2.5A or 1.5A Condition : Brand New -Generic Brand 12 months limited warranty