The NITECORE UI2 BATTERY CHARGER is a dual li-ion portable battery charger that is light and perfect for travelling. This versatile charger is compatible with a wide variety of batteries, including large size 20700 and 21700 cells. Employing a micro USB port,

The UI2 fits various power sources such as mobile sources, power banks and solar panels, in addition to USB adapters and other USB ports. The UI2 systematically selects the optimal charging current at 100mA if the cell is below 2.9V or 800mA if over 2.9V.

The charger has a simple indicator that shows the charging status of each slot through three LEDs. Meanwhile, it provides anti-short circuiting, reverse polarity protection, intelligent thermal protection and the automatic cut-off for longer battery life.