Microprocessor controlled. Professional automatic switch mode For charging ,GEL,SLA and Wet batteries LCD display&pulse repair charge Overheat,overcharge,short circuit & reverse polarity protection Maximizes battery life Voltage:12V Types of batteries: Most types of lead acid batteries including Calcium, GEL and , Wet,, etc.. (Not support Lithium Batteries ) Voltage detection: Yes Switchmode technology: Yes Polarity protection: Yes Output short protection: Yes Non battery link protection: Yes Over voltage protection: Yes Over temperature protection: Yes Cooling: Fan Input voltage: AC 110-230V, 50-60Hz Minimum voltage: 8.0V Battery range: 4-100Ah Efficiency: App. 85% Note: Purchase please select the same polarity consistent socket,charger This charger please for indoor,beware of rain This charger is for battery capacity between 4AH to 100AH Please check the capacity (AH) of your battery before buying the charger! Thanks! Do not be carried with the vehicle,prevent shock. Due to different production batches, the printing screen printing/appearance is different, which does not affect the use. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Colour:Red & Black Material:ABS Package Contents: 1 * Car Battery Charger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.