Victron Energy Blue Smart IP67 Charger, 12V and 24V Options, Lithium and Lead-Acid Battery Charger with NEMA 5-15 Plug

About the Blue Smart IP67 Charger The IP67 rating means this charger is dust-tight and can survive temporary submersion. The cast aluminum enclosure and resin-potted electronics handle oil, chemicals, and washdowns. There are no fans or moving parts, so it runs completely silent and has fewer failure points than fan-cooled chargers. Efficiency runs between 93% and 96% depending on model, which means less heat generated inside the enclosure and less energy wasted during long charge cycles. Charging Modes and Battery Compatibility Three preset charge profiles cover the most common battery types. Normal mode (14.4V absorption for 12V) is intended for flooded lead-antimony, gel, and AGM batteries. High mode (14.7V) targets lead-calcium, Optima, and Odyssey batteries. LiFePO4 mode (14.2V) uses a simplified bulk-absorption-float algorithm without the recondition or storage stages that only apply to lead-acid chemistry. Each profile runs Victron's adaptive algorithm, which adjusts absorption time based on how deeply the battery was discharged. A nearly full battery gets 30 minutes of absorption. A deeply discharged battery gets up to 8 hours. This matters because cutting absorption short causes sulfation in lead-acid batteries, while running it too long accelerates plate corrosion. The charger also includes built-in temperature compensation for lead-acid batteries, adjusting charge voltage automatically as ambient temperature changes. Deep Discharge and LiFePO4 Recovery Most reverse-polarity-protected chargers cannot detect a battery at or near zero volts. This charger will attempt to recover a fully discharged battery by applying low current until enough voltage develops to resume normal charging. For LiFePO4 batteries with an internal BMS that has tripped its under-voltage protection and disconnected the cells, the charger will reset the BMS and initiate charging automatically. Bluetooth and VictronConnect The charger connects to the VictronConnect app over Bluetooth. The app displays real-time voltage, current, and charge stage. It also provides access to settings: you can select the charge profile, switch between normal and low-current mode, enable or disable reconditioning, and update firmware as Victron releases it. Power Supply Mode The charger can operate as a DC power supply without a battery connected, directly powering DC loads from AC input up to it's maximum current rating.