Descriptions:Two-color charging status LED indicator.Comes with clips for easy hook up.Best for automobiles, motorcycles, ATVs, personal watercraft, RVs, boats, lawn tractors , etc.3-Step Battery Charging:Step 1: Fast charge patternOnce the charger is connected to a sealed lead acid battery and plugged in,it is in constant current pattern with the charge current remaining at maximum capacity.Step 2: Constant voltage pattern The charger switches to constant voltage pattern when the battery is 80-95% charged. It will provide a constant voltage,and the charge current decreases to the charge termination level.Step 3: Float charge patternThe charger will switch to this pattern when the battery has been fully charged. You can remove the battery from the charger.If not, the charger will automatically lower the charging voltage to about 12.6V/cell to compensate for self-discharge.The battery can be connected for an unlimited time and when you reconnect the battery, the charging process will return to step 1.Specification:Condition: brand newColor: BlackQuantity: 1 pcSize: 7.2 x 4.7 x 2.7 cm / 2.83inch x 1.85inch x 1.06inch(LxWxH)Wire length: 44.5 cmConnect the Power Line length: 52.5 cmPackage size: 10.5 x 7 x 5 cmInput Voltage Rating: 110-240VMaximum Output Power: 15WCurrent Limit: 1ALeakage Current: 0.25mARecommended Battery Capacity: 12V / 7-10AhInput Frequency: 50-60HZRipple: 120mVEfficiency (at 100% load): 85%Working Temperature: 50F - 122FWorking Humidity: 5% - 95%Package included:1 X Battery Charger Note: The LED indicator is designed to indicate the charging status. Red appears in step 12 and green appears in step 3.