1. Material: aluminum alloy, electronic components 2. Current: 5A (MAX) 3. Voltage: 18.5-20V 4. Magnetic interface, one-touch smart charging, not easy to fall off 5. Configure the charging indicator, intelligently prompt the charging status 6. Using aluminum alloy shell, fast heat dissipation 7. Dimensions: L: 27.8 x 12.1 x 7 mm, T: 29 x 11 x 5.7 mm