Universal External Battery for Laptop. Output Voltage:5.5V,16V,19V Output current: 3.75A (16V) Universal External Battery for Laptop,Universal Power Bank.Power your laptop to ... ,16V,19VOutput current: 3.75A(16V)Cycle life: 500times Fit for laptop(ACER,HP,Lenovo,IBM,Toshiba,DELL,ASUS,Compaq,Sony) and ...