Greetings,
I have built the circuit in the schematic below and have problems with battery charging. None of the external status or EN pins are connected just for bench top testing.
When I have an external source and no battery connected both the PGOOD and CHG LEDs light up. When I connect a battery the CHG LED turns off but I have no current draw from my external source and no battery charging.
With no external source I can run the circuit off battery fine until it is flat (~3.2v). It just will not charge.
Let me know if you need more information or specific readings.
Cheers,
Bill