TP5000 lithium-ion , lithium phosphate , 2A current 4.2/3.6V, suitable for charging lithium-ion and lithium phosphate , full self-stop, red and green dual- indicator. Switching buck mode, higher efficiency than linear charging circuit, and much less heat. Charging current 2A, charging at constant current throughout the charge to maintain 2A, without additional heat dissipation, reducing the impact of heat on the charging current, reducing the charging time. Optional common lithium ion lithium polymer or lithium phosphate , only one is needed to change the setting.4 terminals, 2 inputs, 2 , another with inline LED soldering position.