Technical Parameters 1. Input voltage: 1.5–3V 2. Output voltage: 5V 3. Output current: 500MAH – 1500MAH 4. Color: Blue/Red/Black 5. It is rechargeable using 2 AA batteries of size 5. 6. The DC-DC fast charging boost circuit is built-in. Using two batteries, it can raise the voltage to 5V, with a transmission efficiency of over 98%. Using new AA battery #5, it can charge an Android phone (with a 2500mAh battery) by 40% within 30 minutes. 7. It has a built-in protection circuit that automatically stops charging when AA batteries are used or the device is fully charged. 8. Only two 5#AA batteries are needed, which are easy to purchase. They can then charge your Android phone, MP3 player, MP4 player, PSP, GPS, and more anytime, anywhere. 9. Dimensions: 17mm * 17mm * 18mm
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