It's really pleased product. For a 20Ah battery, it is on the light side, it is lighter than the Switch. It fits perfectly in most Switch cases. It operates as described, fast charges SAMSUNG s8 almost 3.5 times from 15% to 100%, given that still using s8. It also charges undocked Switch while in use 2 times.
Introduction of usb-c power bank：
Interestingly, it is a bidirectional USB PD device, so it charges itself really fast as well. The trade-off is that it cannot charge a device while it is charging itself. We personally don't approve do that but it is often asked.
usb-c power bank Features:
This external battery is really great for it's price. Everything works as intended and it's really nice to have the quick charge/fast charge ability in an external battery as well as both types, USB-C and USB-Micro for charging it. This makes it handy as everyone has the older USB-Micro types when you can't find a USB-C.
Specification of usb-c power bank:
Double Input: Micro&Type-c ：5V /2A；
Double Output: 5V 1A; 5V 2.1A
Net Weight: 401.5g
Gross Weight: 433.5g
Type: Li-polymer Battery
Color: Pink ，Blue
Image of usb-c power bank:
usb-c power bank Application:
Wanshuntong is a professional power bank & Cell Phone accessories manufacturer, we sell our product to Wholesaler, Retail Shop, Trading Company etc.
We have big inventory each month for fast shipment with various model for choice, each are COMPETITIVE PRICE. Product pass through CE, EMC, UL, RoHS and UN38.3 Report etc.
Cooperation with us, you can enjoy:
1. OEM / ODM service
2. EXW / FOB Factory price directly
3. Fast Shipment
4. Good after sale service
5. Further NEW product source