1. This is a fully automatic battery charger with 7 charge stages. 2. Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. 3. 7-stage chargers are suitable for most battery types including Calcium, Gel , AGM, Wet , Lead Acid batteries. They may also help restore drained and sulphated batteries. 4. Types of batteries: Most types of lead acid batteries including Calcium, Gel , AGM, Wet , Lead Acid, etc.. 5. Switchmode technology: Yes 6. It has polarity protection, output short protection, non battery link protection, over voltage protection, over temperature protection. 7. Input voltage: 100-240V AC, 50-60Hz 8. Rated output: 12V 7A 9. Minimum start voltage: 8.0V 10. Battery range: 6-120Ah 11. Efficiency: 85%
