Brand Name: YYHQQBAD Quick charge: Yes Data Transmission: no High-concerned chemical: none Intelligent Charge: Yes Output Power: ≤37.5 Origin: Mainland China Display screen: No Voltage range: Low voltage non-USB (below 75V DC, below 50V AC) Power Source: DC Type: Electric Certification: CE Use: Standard Battery Model Number: 21V 2A Package: Yes Choice: yes semi_Choice: yes