Specifications:
Input: 5V/9V/12V–3A (max)
Output: 8.5V / 3.8A(max)
Charging time: (input: PD 40W or higher)
2453mAh battery about 150 minutes (50 minutes per battery)
3850mAh long battery life about 225 minutes (75 minutes per battery)
Product size: 9.6*5.4*2.8CM
Packing size: 10.2*7.8*3.3CM
Net weight: 65g (excluding wire weight
Package weight: 109g
Charging ambient temperature: 0-40°C

Feature
1. You can check the battery level
2. You can put up to 3 batteries, and charge them in order from high to low. Batteries with high power are charged first.

Package Included: 

1 x Mini 3 3-Way charger hub 
1 x USB-A to USB-C Charging Cable
1 x USB-C to USB-C Charging Cable