Charging voltage: DC4.5V-5.5V (DC5V is recommended).
Charging current: 0-2.1a.
Charging static current: 100uA
Full voltage: 4.2V+-1%.
Discharge current: 0-3.5A;
Discharge static current: 50uA
Discharge efficiency: 96% max.
Output voltage: 5V
Output current: 0-2.1A;
Ambient temperature:-20 to+85