Halo Microelectronics HL7022 2A Li-ion Battery Switching Chargers support 2A charge current rating, 4.2V default charge termination voltage, and 325mA pre-charge current. HL7022 chargers feature comprehensive protection, including reverse battery leakage protection, thermal regulation and shut-down, and input and output over-voltage protection. These chargers offer a full range programmable charge parameter through I2C compatible interface. Halo Microelectronics HL7022 2A Li-ion Battery Switching Chargers are ideal for smartphones, MP3 players, and tablet PCs.