Good Portable Charger for Lap LP49

1. 48W power best solution for charging laptop.
2. Output voltage adjustable.
3. Specially designed adaptors compatible with most mainstream laptops.
4. Can also be used to charge mobile phones.
Input: DC 12.8V/1.5A
Output voltage/current:
16.5V/1.4A
19V/1.6A
22V/1.8A
Li-ion rechargeable Battery: 11.1V/4400mAh
Charging Time via AC socket: Approx. 4-5HRS
Discharging time: Approx. 1.5-3HRS
Size: 154mm*102mm*23mm
Weight: 400g
Certification: CE and RoHS