9600mAh actual capacity; Short circuit, over-charge, and over-heat protection,very safe.
After fully charged one time, can keep about months.Noraml use can keep 3-5years. Start car at one time on cold & hot areas.
Very connvenient.can be charge at home(100-240V) and car.Normally use 3 hours for full charge.
By using our free connector ,you can use it to provide power for your car refrigerator or other 12V electronics like car cleaner.