This portable 2A smart charger does more than just charge 12V vehicle batteries. The charger can be connected to a battery for a long duration and it will monitor the power and slow it down to prevent any overcharge. An LED light will flash at each stage of charging: 25%, 50%, 75%, and 100%. It is also suitable for winter charging in temperatures as low as -20°C. It is an easy to use and cost-effective solution to keep batteries in good condition all year round. Features and Benefits6-step automatic smart chargerCharges and maintains 12V Lead-Acid batteries at 100% for a long durationWinter charging mode protects batteries in freezing temperaturesSafe charging with protection against overheating, short circuit, reverse polarity and over chargingCompatible with most 12V vehicles including cars, motorcycles, vans and caravansCharges EFB batteries when in 12V STD mode Specifications Charge Type: Automatic smart charger Charge rate: 2A Voltage: 12V Suitable battery type