This Nucleus-Nano 14500 Magnetic Battery Charger Cable allows you to charge a single 14500 battery via USB power. Simply attach the two diodes to either side of the battery to start charging. There’s also a USB port on the cable so that you can link multiple chargers together.
Although this comes in the Nucleus Nano kit, it is also compatible with the following batteries: 12650, 13450, 13500, 13650, 14350, 14430, 14650, 16500, 17350, 16340 (RCR123), 16650, 17500, 17650, 17670, 17700, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 22700, 25500, 26500, 26650, and 26700.
** The white section in the middle of the cable has an LED indicator that lets you know the status of the charge. Here are what the different indicators mean: when the battery is installed, the LED light will flash red. As the voltage increases, red and blue lights will alternately flash. When the battery is fully charged, a solid red light is shown. When outputting power, a solid blue light is shown.