GEG-944B 1. Product Description: This is a universal external battery pack, Applicable for 80% models of laptop, compatible with all digital devices charged by USB port. 2. Configuration This product made up of Lithium battery, 1pcs PCB board, and housing. Color: black Weight: 500g Material: plastic Dimension: Lmax170mm×Wmax85mm*Hmax22mm Button: the output voltage and capacity checking indicated through the same button. Indicator: 5 green LED to indicate the capacity. Switch: Voltage switch(16V,19V) Charge Port: DC port Discharge Port: USB, out DC port 3. Technic Parameter Capacity: 4400mAh Cell Voltage: 3.7 V Input Voltage: 16V,19V Output Power: 60W max Output Voltage: 5V,16V,19V Discharge Time: 75minute (16V) Over Charge Voltage: 4.30V±0.05V Over Discharge Voltage: 2.3V±0.1V Cycle life: e300 times Charge Time: 3 hours Cycle type: Lithium-ion 4. Function & Usage Charge Charged battery pack by user’s original notebook AC adapter DC 16V,19v, the LED intelligent indication during charging, all 5 LED light in green when full charged. Discharge 1. Move the switch and choose suitable voltage for your laptop. 2. Connect the laptop and battery pack by discharge cable and tips, it’s working after pressing the button 3. Connect devices and battery pack by USB cable, it’s working after pressing the button 5. Safety Certification FCC CE