Microprocessor Control (CPU). This is a fully automatic battery charger Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. Smart chargers are suitable for most battery types including Calcium, Gel , Wet, lead Acid batteries. They may also help restore drained and sulphated batteries. Types of batteries: Most types of lead acid batteries including Calcium, Gel , Wet, lead Acid, etc.. 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:100-240V AC, 50-60Hz Rated output:12V 6A Minimum start voltage:8.0V Battery range:4-120Ah Thermal protect:65C5C Efficiency:App.85 percent . Weight:440g Plug Type:UK plug,it applies to , the United Kingdom and so on. Voltage:AC100-240V Colour:Red-Black Material:plastic Size:(LxWxH):158x85x63mm Package Contents: 1 x Car Battery Charger 1 x Power Cable 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.