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BQ25703A: Device does not appear to be charging

Tom Hulbert
Prodigy 40 points
Part Number: BQ25703A

Hi,

I am having a few issues trying to get a BQ25703A charge circuit to work with a 3 cell 11.1V Li-Po.

While connected to a 14.8V external supply the charge circuit will power the rest of the board but does not appear to charge the battery (3 cell, 11.1V Li-Po).

When the rest of the circuit is powered down, the charge circuit only draws 1mA and no change in battery voltage occurs. 

I discharged the battery down to 11.1V to ensure that it wasn't just reaching it's fully charged state.

My understanding is that none of the i2C registers should have to be changed from default to get the device to function.

I have attached the schematic for reference, any assistance would be much appreciated.

Thanks,

Tom Hulbert