The main body is made of aluminum alloy, which is strong and durable Large-screen color display: Large-screen color display allows you to view charging status from a distance Charging curve: newly upgraded to 8-stage intelligent optimized charging, which is more friendly to the battery Charging current optional: 2A, 8A, automatic, 20A, 25A, wide applicability The new BOOSTER (car assist start) function makes car starting worry-free Battery charging type: Lead-acid battery, lithium iron battery, GEL, AGM, EFB, Deep Cycle, Wet battery Application scenarios: cars, motorcycles, snowmobiles, golf carts, scooters, ATVs, trucks, RVs, etc. Specification: Switch mode technology: Yes Polarity protection: Yes Output short protection: Yes Non battery link protection: Yes Overvoltage protection: Yes Over temperature protection: Yes Cooling: Fan Input voltage: 100-240V AC, 50-60Hz Rated output: 12V 25A, 24V 15A Minimum start voltage: 5.0V Battery range: 6-400Ah Thermal protection: 65±5℃ Efficiency: about 85% Dimension: 192x216x125mm