... 1)Output:a): 5V1A, 5200mAh; 5200mAh external power bank portable battery charger for mobile, PSP, GPS, MP3/ ... polymer battery core 6.double circuit to protect the IC 7.for many types of ... types of switching power supply and batteries: Portable power bank charger, Desktop chargers, travel charger, car charger, ... and TUV and so on. 5200mAh external power bank portable battery charger for mobile, PSP, GPS, ...