... power bank 2. standard USB output3. Charge for iPhone\iPad etc4. Over charge and discharge protectSpecifications:*Internal battery type: 3.7V Lithium battery*Capacity ... battery, 5000mAh, to make sure 500 times above charging cycle 2. Two USB output socket, can also charge iPhone, iPad, mobile ... Celsius · PCB and battery pack available · Other sizes ... MP3, MP4 player, portable DVD, Notebook, Bluetooth ...