Ready for Bluetooth Smart. The Blue Smart IP67 charger is the wireless solution for monitoring voltage and current, adjusting settings, and updating the charger when new features become available. The functionality of the IP67 charger is further enhanced with Bluetooth and is roughly equivalent to our IP22 and IP65 chargers. Fully encapsulated: waterproof, shockproof, and fire-resistant. Water, oil, or dirt cannot damage the Blue Smart IP67 charger. The housing is made of die-cast aluminum, and the electronics are coated with resin. Highest charging efficiency ever! Setting a new industry standard: With an efficiency of at least 92% or more, these chargers produce three to four times less heat. Once the battery is fully charged, power consumption drops to less than one watt, which is about five to ten times better than the industry standard. Adaptive 5-stage charging algorithm: Bulk (constant current phase) - Absorption (constant voltage phase) - Recondition (regeneration phase) - Float (maintenance charging phase) - Storage (storage mode). The Blue Smart charger features microprocessor-controlled, "adaptive" battery management. "Adaptive" means that the charging process automatically adjusts to the type of battery usage. Storage mode: Less maintenance and aging during battery standby. The storage mode is activated whenever there has been no discharge within 24 hours. In storage mode, the maintenance charging voltage is lowered to 2.2 V/cell (13.2 V for a 24 V battery) to minimize gas development and corrosion on the positive plates. Once a week, the voltage is raised to the level of the gassing voltage. This achieves a kind of equalization charge that prevents electrolyte stratification and sulfation - the two main reasons for premature battery failure.