Feature:

1. Charging and protect the circuit at the same time.
2. LED indicator- red is charging Green is fully charged.
3. Micro USB female outlet for input end can be used to charge the lithium battery by phone charger directly. Besides, it still retains the input voltage wiring welding spot, good for DIY OUT+ and OUT- may have no output voltage when you connect the first time. You can protect the circuit by accessing 5V voltage. Same as B+ and B- area.
4. If you use a phone charger to charge this device, please be sure the input current over 1A, otherwise, it may wont run properly.
5. Connect B+ to positive electrode of battery and B- to the anode. Connect Out+ and Out- to load.
   Please disconnect the load when charging and connect the right electrode.