Features: 1.Small Volume: 2x1.7cm/0.79x0.67inch 2.Complete Function: boosting,lithium battery charging,undervoltage for protection,output short circuit for protection,cellphone charge identifying circuit 3.Superlow Static Current:whole circuit only consumes 0.1MA without connecting load;don'for t need manual operation;It will standby if without load,and only consumes electricity 0.1MA 4.Circuit has high integration level;external circuit is simple,so it has high reliability Specifications: 1.Charging Voltage/Current:DC 5V/1000mA(when charging,red light is on;when fully charged,green light is on ) 2.USB Output Voltage/Current:DC5V/1200mA(please don'for t connect more than 1200mA appliances for long for time ) 3.Charging Interface:Micro USB port 4.Size: 2x1.7cm/0.79x0.67inch Quantity: 1 Pc Note: 1.Don'for t use output to connect more than 1200mA devices;otherwise,PCB will burn 2.Please connect battery with B+,B- two ports;the polarity must be right,transposition will burn the chip 3. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid 4. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 Pc x Charger Board Module