Victron Blue Smart 30 A 12 V IP22 mains charger with Bluetooth enables safe, unattended charging and remote monitoring of 12 V battery systems.

• Compatibility: Charges 12 V Lithium and lead‑acid batteries, including AGM, Gel and Wet cell; can charge a single battery or batteries in parallel (same type, capacity and age).
• Output & modes: DC output 30 A (normal); night/low mode reduces output to 15 A (max 50%); DC output voltage 12 V; minimum battery capacity: 60 Ah (normal), 30 Ah (night).
• Charging algorithm & voltages: Adaptive automatic 7‑stage charging; absorption 14.2–14.7 V, float 13.5–13.8 V (depending on battery type); dead battery recovery — will start charging from 0 V.
• Continues charging while loads are connected: can maintain charging even while energy is being drawn from the battery during use.
• Inbuilt temperature sensor: automatic temperature compensation (16 mV/°C) for accurate charging across temperature ranges.
• Efficiency & consumption: High efficiency (93%); standby power consumption 0.5 W.
• Connectivity & indicators: Built‑in Bluetooth for programming and monitoring via the VictronConnect app; 11 front LEDs indicate charging stage and status.
• Safety & useful functions: Inbuilt protections against DC short circuit, overheating, overcharging and reverse polarity; power‑supply function to power a 12 V load without a battery; storage mode to prevent ageing and reduce sulphation; silent night mode for low‑noise operation.
• Environmental & physical: AC operating voltage 180–265 V; operating temperature −20 °C to 50 °C (−4 °F to 122 °F); humidity (non‑condensing) max 95%; low‑rpm fan cooling; protection rating IP22 (indoor use); dimensions 235 x 108 x 65 mm; weight 1.3 kg.

For best results leave connected for automatic maintenance, ensure parallel batteries match in type and age, and use the VictronConnect app or user manual for programming and safety guidance.