1) Size-- Length: 70 mm (Fat), Diameter: 20mm or 18mm (Slim)
Net Weight : 33g (battery not included)
2) Input voltage : DC 1.5V
3) Output voltage: 5.7V + 0.1V/-0.5V
4) Output current: 196mA - 280mA
5) Charging time: at 280mA, 10min
6) Falls down to 100mA, more than 30min
7) Available talk time after charging: around 2 hours (but there are differences between different charging condition required phones)