4.5V-5A / 5V-3.4A / 9V-2A / 12V-1.5A (max 22.5W) max total output of 45W. Are the positive and negative poles reversed?. Is the fuse in the wiring blowned?. Safety Protection - Over-heated, over-current, over-charging protection, charging will be automatically stop when battery is full; 30cm wiring and fuse included; easy to use and install.
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