•This is a fully automatic battery charger with 7 charge stages •Automatic charging protects your battery from being overcharged. So 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, 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