Description: 【Intelligent Charging】: The car battery charger features a microprocessor control for smart charging. It has a key switch, separate charging modes for winter and summer, and an automatic stop when the battery is full. This ensures your battery is not overcharged, making it safe to leave the charger connected indefinitely. 【Powerful and Fast】: With its strong power output, this charger can quickly charge most types of lead batteries including Calcium, Gel AGM, Wet, Lead batteries. It even has the potential to recover drained and sulphated batteries. 【Safe Features】: The Battery Charger comes with numerous safe protections such as polarity protection, output short protection, non battery protection, over voltage protection and over temperature protection. It also features a cooling fan to prevent overheating during use. 【Material】: The Battery Maintainer is encased in a flame retardant ABS plastic shell for durability and safe. 【Compact Size】: The compact size of the car battery charger is 6.69inchx3.94inchx2.56inch, making it easy to carry around. Specification: Switchmode technology: Yes Polarity protection: Yes Output short protection: Yes Non battery protection: Yes Over voltage protection: Yes Over temperature protection: Yes Cooling: Fan Input voltage: 100-240V AC, 50-60Hz Rated output: 12V 10A , 24V 5A Minimum start voltage: 8.0V Battery range: 6-180Ah Thermal protect: 65'C+/-5'C Efficiency: App. 85%. Compliant standards: CE, IEC60335, EN61000, EN55014 17cmx10cmx6.5cm/6.69inchx3.94inchx2.56inch Package Includes: 1 Car Battery Charger(US Adapter) Note: Please allow slightly errors due to manual measurement and different monitors.