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Nitecore UI2 is a universal portable smart charger with USB source cable for 2 x Li-ion and IMR batteries. The UI2 automatically detects the Li-ion or IMR battery and the USB input automatically detects the optimal charging current (CC/CV).
Fenix 18650 3500 mAh rechargeable battery (L18-3500U) with its own micro-USB charging connector. It can be charged by connecting the cable to the micro-USB connector (e.g. from a computer or mobile phone charger) or in a conventional charger....