TalentCell Lithium ion Battery Pack NB7102, Rechargeable 17500mAh 64.75Wh Li Power Bank with DC 24/19/5V and USB C 5/9/12/15/20V Output for Laptop, Notebook, Smartphone, Camera more, Black

Modle: NB7102. Capacity: 25.9V 2.5Ah or 3.7V/17500mAh. ( It's just a different way of calculating, actually the same capacity. )Total 64.75Wh Output: DC1 (5521): 29.4-21V/3A DC2 (4017): 19.5V/3A USB-A: 5V/2.4A 12W Max. USB-C: 5V/3A 9V/3A 12V/3A 12V/3A 20V/3A 60W Max. How to charge safely: 1. Connect the wall charger to AC socket first, and the led of the charger will light green. 2. Then connect the charger with battery Note: Don't use any two of three output ports (DC1, DC2 and the USB-C) to discharge at the same time.Will not charge? Please contact seller immediately to replace a new charger Compatible with most Laptops, Notebooks, LED strip light products, CCTV Camera, LED Panel, Modem, Speak, Car DVR, Router,Guitar Amplifier etc. We provide 12 kinds of connector for most of the popular Laptops, please make sure the connector fits for your laptop before purchasing