MAX77985/MAX77986 1-Cell Li+ Battery Chargers Analog Devices MAX77985/MAX77986 1-Cell Li+ Battery Chargers offer a high-performance, high input range of 3.5A to 5.5A with a fast charge and Smart Power Selector™. The Smart Power Selector accommodates a wide range of battery sizes and system loads. The Smart Power Selector permits the system to start up properly when an input source is available, even when the battery is deeply discharged (dead battery) or missing. It can be configured so that the battery charging can automatically start when power is applied to the charger input.