Feature Ultra-small size high efficiency single-chip boost integrated overcurrent protection overtemperature protection making the circuit more stable lower output ripple AVX tantalum capacitors red and green battery indicator. Applications: This module can be used in a single lithium battery l 5V-12V output for charging digital products in general such as mobile phones IPAD MP3 PSP and so on. With its own charging circuit and the battery indicator circuit connected to a battery can only become a high-current output mobile power. You can also set the output voltage of the power supply for the products of 5-12V.