Feature:1. DIY Mobile Power: Large capacity, 20 18650 batteries (batteries not included). Dual USB power banks can charge two devices at the same time. With three input ports, any USB cable can charge the mobile power bank.2. Smart 18650 Battery Charger: Compatible with 18650 flat head lithium batteries. Each battery slot is individually charged and tested. After the battery is fully charged, the charging is automatically terminated. (Note: Please pay attention to the positive and negative poles).3. Easy to Use: Lightweight and small size allow you to put it in your pocket or carrying bag, easy to carry and store, will not increase burden, can bring you more convenience.4. LCD Display: Accurately display the battery level and keep abreast of the battery status. Plug and play, the power output adopts the USB port, plug in the data line to achieve portability, and you can charge at any time.5. Wide Range of Uses: Compatible with all types of mobile phone charging, widely used, is your necessary gift.Specification:Item Type: 20 18650 Battery CaseMaterial: ABSWeight: Approx. 258g/9.1ozModel: L20 Fast Charging Version 22.5WBattery Type: 20 x 18650 Battery( Battery Not Included)Output Port: 2xUSBInput Port: Micro/Type CFast Charge 22.5W: 5V-2A/3A/4.5A 9V-2A/2.5A 12V-1.85AOutput Fast Charge Protocol:Support: AFCSupport: FCPSupport: SCPSupport: PE2.0/PE1.1Support: SFCPSupport: Low Voltage Direct ChargeSupport: PPS/PD3.0/PD2.0Support: QC4+/QC4/QC3.0/QC2.0Enter Fast Charge Protocol:Support: AFCSupport: FCPSupport: SCPSupport: PE1.1Support: PD3.0/PD2.0Scope of Application: Support All Models of Mobile Phones for Charging.Package List:1 x Battery Box( Battery Not Included)1 x Screwdriver1 x Lanyard7 x Screw