... charging is very good and its speed is fast2. Wide voltage input (12-24VDC) it can be used by multi- ... ™, iPads™, iPhones™, MP3s (USB cable not included) Specifications: Input Voltage: 12 - 24V DC Output: DC 5V 2100 mAh Unit Dimensions ... limiting,lower risks of over-current,overheat and short-circuit Insulation resistance: (under normal atmospheric conditions) ≤100Mohm, product circuit can withstand ...