The Draper 53489 12V Smart Charger and Battery Maintainer protects batteries in freezing temperatures The Draper 53489 is a portable 4A smart charger that does a lot more than just charge 12V vehicle batteries. It has the ability to activate, analyse and recondition the battery in 10-steps, making it ideal for deeply discharged batteries. The charger can be connected to a Lead-Acid or Lithium battery for a long duration without the risk of overcharging. It can also be used in winter temperatures as low as -20°C. It is easy to use and a cost-effective solution to keep batteries in good condition all year round. Features: Charges EFB batteries when in 12V STD mode Winter charging mode protects batteries in freezing temperatures 12V DC power supply enables battery removal without losing car settings Compatible with 6V and 12V vehicles including cars, motorcycles and vans 10-step automatic smart charger that analyses and reconditions deep discharged batteries Charges and maintains 6V and 12V Lead-Acid batteries and 12V Lithium batteries at 100% for a long duration Specifications: Voltage: 12V Weight: 0.6kg Charge rate: 4A Dimensions: 165 x 75 x 48mm Charge Type: Automatic smart charger Suitable battery type: WET, MF, Ca/Ca, AGM, GEL, LiFePO4