Built-in temperature sensors constantly monitor each cell, and the charger will lower the charge rate if the cell begins to overheat. The Over 4 Slim will also charge your USB devices, with two high-power 2.4A USB charge ports built in to the side of the charger.
|Li-Ion Compatible Cells||18650/18700/20700/21700/22650/26650|
|Li-Ion Cut-Off Voltage||4.2V|
|Charge Current Range||1/2/4.1A|