The first time you need to install the 18650 battery,then use 12V 5.5×2.1mm charger to activate output.
Fast Charging: With a quick QC 3.0 USB port, it enables you to get a quick top off on your QC 3.0-enabled mobile phones.
5.5×2.1mm port output is DC 12V,Suitable for wifi Router LED Strip CCTV Camera and more.
As USB charger for Cellphone Tablet and more devices
Item Type: 18650 Li-ion Battery Charger Box
input: DC 12.7V 2A
5.5×2.1mm port output: DC 12V 2A
USB Output: 5V 3A,9V 2A,12V 1.5A
1 X DIY Power Bank Box(18650 batteries are not included)
1 X DC adapter