Victron SmartSolar 45 A MPPT charge controller with built‑in Bluetooth for solar arrays up to 150 V and high‑efficiency energy harvest.

• Max solar panel power: 650W (12 V) / 1,300W (24 V) / 1,950W (36 V) / 2,600W (48 V); max panel voltage 150 V.
• Ultrafast MPPT technology for maximum yield — high efficiency >95%, up to ~30% more than PWM and up to ~10% over slower MPPT units; improved low‑light performance.
• Inbuilt safety protection: PV short circuit, reverse polarity, overvoltage, overcurrent, reverse current, battery overvoltage, battery reverse polarity and overheating monitored by internal temperature sensor; self‑diagnostics and high‑intensity LED fault indication.
• Inbuilt Bluetooth and live data transmission: connect via VictronConnect for real‑time solar, battery and system data.
• Data logs: system activity for the past 30 days available to view; user‑defined battery charging algorithm allows disabling presets in favour of personalised charging parameters.
• Programmable relay with audible alarm options — AC rating: 240 VAC / 4 A; DC rating: 4 A up to 35 VDC, 1 A up to 60 VDC.
• Optional accessories: VE.Direct to USB cable (optional), connection area for an optional LCD display and an MPPT Control panel (sold separately).
• Communications & consumption: RS232 / TTL for VE.Direct accessories; self‑consumption <35 mA (12 V) / <20 mA (24 V). IEC/EN certified; enclosure IP43 (electronics); Pollution Degree PD3.
• Physical & operating specs: dimensions 185 x 250 x 95 mm; weight 3 kg (6.6 lb); 4 x mounting holes (8 mm dia); working temperature -30°C to +60°C (-22°F to +140°F). Ideal for boats, caravans and off‑grid installations.

User manual and downloads available; use VictronConnect for setup and monitoring. Optional control panel and display sold separately—check compatibility before purchase.