The precharge timer is set to 30 minutes . The precharge current, can be programmed to offset any system load, making sure that the 30 minutes is adequate.

The fast charge timer is fixed at 10 hours and can be increased real time by going into thermal regulation, IN-DPM or if in USB current limit. The timer clock slows by a factor of 2, resulting in a clock than counts half as fast when in these modes. If either the 30 minute or 10-hour timer times out, the charging is terminated and the CHG pin goes high impedance if not already in that state. The timer is reset by disabling the IC, cycling power, or going into and out of TTDM.