QUICK OVERVIEW

1. USB Output: 5V 2.1A / 5V 1A(Dual USB interface).
2. Batteries Type: liquid lithium-ion batteries (18650) 3.7 lithium-ion batteries only.
3. Screen size: 27mm x 17mm.
4. Charging voltage input: 5V-6V 1A.
5. Step-up voltage output: 5V 1A/2.1A (Dual output, Total 2.5A).

Product Description

• This is the Mobile Power Boost DIY 18650 Lithium Battery Digital Dual USB mobile power module Accessories, 18650 Circuit board shell.
• Meet the individual needs of your DIY, but you must understand basic electronic assembly. 
• The motherboard comes with protection Charging, overcharge protection, over-discharge protection, overcurrent protection. 
• Intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge. Output voltage and current stable, will not harm user devices.