Compatibility - It applies to rechargeable battery as 32650, 26650, 26500, 25500, 22650, 22500, 21700, 20700, 18700, 18650, 18500, 18490, 18350, 17670, 17650, 17500, 17350, 16650, 16340(123A), 16500, 14650, 14500, 14430, 14350, 13650, 13500, 13450, 12650, 12500, 12340, 10500, 10440, 10350, 10340 1.2V Ni-MH/Ni-CD, 3.6V/ 3.7V Li-ion/IMR/INR/ICR, AAA/AA/C SAFETY PERFORMANCE - Compliant standard - UL CE GS FCC RoHS. Built-in intelligent circuits protection to protect the battery safety charged. A protection against short circuit, overheat, over-voltage and over-discharge. Distinctively, the discharging function can decrease the hurt of battery, making it more efficient and environmentally friendly LCD DISPLAY - High definition LCD displays real time charging status, 4 sets of led indicators show independently when charging, making the charging process visible status and stopping once completing charge intelligently Temperature protection - Stop charging automatically if the temperature of charger or battery gets too high when charging. Stainless steel rail is more durable and smooth. Worldwide voltage, suitable for the whole world, car adapter is available