Features: 1. Exquisite material, high temperature resistant flame retardant, safe and assured quality.2. Stable operation, strong current, constant output, only timing pulse, reverse connection protection.3. Dynamic indication, charging two-color display, red light is charging, green light is full state.4. 3 pins plug interface is positive and negative, clear indication display, charging is more convenient.5. Humanized design, current and voltage labeling, safety and cautions, so that you can safely use. Specification: Condition:100% New Material: Plastic Color: Black Shell: Approx.11.2x6.5x4.3cm / 4.4x2.6x1.7in Weight: Approx.154g/5.4oz Specifications: 12V, 1.8A Input voltage: AC-220V Output voltage: DC-13.8V Rechargeable battery: within 12V14AH Areas of Application: Agriculture, animal husbandry, aquaculture, forestry Package List: 1 xCharger Note: 1. Confirm that the charger output voltage matches the rated voltage of the battery and the positive and negative poles.2. Please put the charger in a ventilated place when using it, and do not cover the charger with the item.3. Pay attention to the protection against moisture, shock, and internal high pressure.4. L is the negative electrode and N is the positive electrode.5. Tips: If there is no power supply, please connect the charging display to green light or smoke. Please don't worry, the charger has reverse connection protection and will not be damaged. There are two cases of this phenomenon:(1) The charger is the negative charge. You need to turn on the charger. You can see the line group of the word interface. You can use the two wires for welding. You can't ask the repairman to transfer the operation.(2) The battery does not use the feed for a long time, resulting in insufficient voltage.