Coleman 6W Solar Battery Trickle Charger Trickle Charge & Maintain Your 12V Battery Completely Weatherproof Use Indoors Or Outdoors Built In Blocking Diode Protects Battery Discharge At Night Temperature Range -40 To 176 Degrees Fahrenheit Maximum Output 6W 400 Mah Includes: 4 Pre Cut Holes For Easy Installation 4 Stainless Steel Screws 9 5" Wire 12V DC Plug Battery Clamps Quick Connect Technology.