Input voltage: 100-240V AC 50/60Hz Output voltage: 14.6V Output current: 3A Connector: 5.5 x 2.1mm Suitable for: 12V 4S Lifepo4 battery Note: When charging, connect the battery first, then the mains; after the battery is full, turn off the mains, then disconnect the battery. Disconnecting the battery during charging, especially if the charging current is large (red light), can easily damage the charger. LED indicator: RED: Charging Green: Full battery, automatically stops and turns green when the battery is full. Charging mode: CC-CV First stage: CC: Constant current charging, the LED indicator is red. When charging with the rated voltage, the battery enters the second stage. Second stage: CV constant voltage charging. The current gradually decreases until the LED indicator turns green and the battery is 90%-95% fully charged. The battery continues to charge with low current until it is fully charged. Plug type: EU plug, applies to Indonesia, Germany, France, Spain, Italy, etc. Color: Black. Material: Plastic and metal. Voltage: 100-240V AC. Package content: 1 x Lifepo4 charger. Only the above package content, other products are not included. Note: The actual color of the item may differ slightly from the image due to lighting effects and different screens. Please allow 1-3 cm error.