The LX2202 (compared to the LX2201) has improved charge and discharge mode detection circuitry. A UVLO feature prevents battery charging when VDD is less than 3.6V. The LX2202 uses three resistors to program the constant charge current level, for setting the termination charge current, and for varying the USB charge current limits. LX2202 support two types of Li-Ion battery chemistry; 4.1V and 4.2V through logical input (VM pin). The LX2202 provides a charging status indicator. The LX2202 features a pre-charge conditioning mode for batteries that have been deeply discharged and also has a top off charge mode for batteries that are left on the charger for extended periods.