Detailed Product Description 2000mAh Battery Pack for Laptop, Mp3, Mp4, iPods, PDA, Camer etc, Universal ... is external and portable. When you are out for business or a trip, with this universal battery ... , you need not carry any chargers for your notebook, mobile phone, Mp3, Mp4 and other mobile device. It ... are out of power while AC power source for charge is not available.Capacity: 18000mAh(3.7V ...