HI I am currently involved in designing a Portable battery charger for the smartphones The circuit has 2 USB-FRIENDLY LITHIUM-ION BATTERY CHARGER AND POWER-PATH MANAGEMENT ICs, a bridge rectifier, Fuse, Voltage regulator and led. The led currently in it is a bicolor LED indicating the battery level. Now i want to change it to Tri color led with outputs in the zero, mid and complete level of the battery. I am confused make changes in the circuit. I would appreciate if anyone can guide in this. Thanks in advance.