• This is a fully automatic battery charger with 7 charge stages • Automatic charging protects your battery from being overcharged. You can leave the charger connected to the battery indefinitely • 7-stage chargers are suitable for most battery types including Calcium, Gel AGM, Wet, LiFePO4, and Lead Acid batteries. They may also help restore drained and sulphated batteries Specification: • Switchmode technology: Yes • Polarity protection: Yes • Output short protection: Yes • Non battery link 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: 5.0V • Battery range: 6–200Ah • Thermal protection: 65±5℃ • Efficiency: about 85% • Dimension: 192x102x165mm Package included: • 1 x Car Battery Charger • 1 x English User Manual