Victron Energy Blue Smart IP22 Charger 12 / 15(1) 230V UK The Blue Smart IP22 Charger is the new professional battery charger with built-in bluetooth. The Blue Smart IP22 Charger can be used on devices in your workshop and on motor vehicles, such as (classic) cars, motorbikes, boats and camper-vans. Bluetooth Smart The Blue Smart IP22 Charger is the wireless solution to monitor voltage and current, to change settings and to update the charger when new features include become available. High efficiency: With up to 94% efficiency: , these chargers generate up to four times less heat when compared to the industry standard. And once the battery is fully charged, power consumption reduces to 0.5 Watt, some five to ten times better than the industry standard. Adaptive 6-stage charge algorithm: test - bulk - absorption - recondition - float - storage The Blue Smart Charger features include a microprocessor controlled 'adaptive' battery management. The adaptive feature will automatically optimize the charging process relative to the way the battery is being used. Storage Mode: less maintenance and aging when the battery is not in use The storage mode kicks in whenever the battery has not been subjected to discharge during 24 hours. In the storage mode float voltage is reduced to 2.2V / cell (13.2V for a 12V battery) to minimize gassing and corrosion of the positive plates. Once a week the voltage is raised back to the absorption level to equalize the battery.