The blue smart ip22 charger is a new professional battery charger with built-in bluetooth. It can be used for equipment in the workshop and motor vehicles such as cars, motorcycles, boats and campers. bluetooth smart: the blue smart ip22 charger is a wireless solution for monitoring voltage and current, changing settings, and updating the charger when new features become available. There are 11 led status indications. high efficiency: these chargers are up to 94% efficient and generate up to four times less heat than industry standards. When the battery is fully charged, power consumption is reduced to 0.5 watts, about five to ten times lower than the industry standard. storage mode: less maintenance and less aging when the battery is not in use. Night mode ends automatically after 8 hours. Low mode can be ended manually. prevent overheating: when the temperature rises to 50°c, the output current will decrease, but the blue smart charger will not malfunction.