SecurityIng Multifunctional Universal Intelligent 2-slots Li-ion Ni-mh Ni-cd Traveling Battery Charger with USB Output Suitable for 26650 / 22650 / 18650 / 18500 / 14500 / 16340 rechargeable batteries & A / AA / AAA / C / SC Batteries Automatic identification for 1.2V lithium ion battery and 3.6 / 3.7 V Ni-mh / Ni-cd battery, automatically stops charging when fully charged. With 2 groups of 6 independent charging LED display, charging process is visible and intuitive. Comes with DC 12V vehicle input jack & USB 5V output jack, can be used as power supply to charge mobile phones and other electronic devices. With battery reverse polarity protection, short circuit protection, zero-voltage protection alarm function. Compatible Batteries: 3.6 ~ 3.7V Lithium Ion Battery, such as 26650 / 22650 / 18650 / 18500 / 14500 / 16340 batteries & 1.2 ~ 1.25V Ni-mh / Ni-cd Battery, such as A / AA / AAA / C / SC batteries.