You are not telling the information that is needed.

1). Is the 902 charger set for Lithium Polymer?
2). Are you using the Li-xx Discharge function?
3). You did not specify the discharge rate you have the charger set for.

Time indicates that the Safety Timer has triggered. This is set in the User Setup and defaults to 120 minutes. End means that the charger has finished.

It is very possible that the 1700 lipo pack is only giving you 650 mah depending at what discharge rate you are setting the charger for. The 902 is capable of 9.9 amp discharge rate.