Battery cables too short. The AC cord is also too short. The automatic function assumes that the 24V consumed is 12V and does not charge. 10A actually only charges. The "User's Guide" is a stupid useless hodgepodge in bad English that only explains the obvious. There is no explanation for all panel lights or what the flashing colors mean. The low-contrast display is difficult to read unless the angle is right and the distance is no more than 20 inches. However, it will eventually charge a 12V battery. Good luck using 24V. Must have a 12V/24V switch. Good price.
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