Victron SmartShunt 300A/50mV Battery Monitor — Bluetooth, 6.5–70V (No Display) Solar If you're unsure

If you're unsure

Battery bank Maximum solar array Typical setup 12V ~1000W 3–4× 300W panels (rare config at 12V) 24V ~2000W 6× 350W residential panels 48V ~4000W 12× residential panels in 3 strings of 4 Maximum PV open-circuit voltage: 250V

Backup essentials — small power for router

The standout feature versus the other small MPPTs is the 48V battery support

allowing it to absorb solar energy from both sides

Victron SmartShunt 300A/50mV Battery Monitor — Bluetooth, 6.5–70V (No Display) Solar If you're unsureThe Victron SmartShunt 300A is the compact, budget friendly battery monitor in the SmartShunt family sized for smaller 12V systems where peak current stays under 300A. Same Victron measurement firmware and same 0. 4% accuracy as the larger shunts, in a smaller, cheaper package. Ideal for van builds, small RVs, day sailing boats, and modest off grid installs. No display your phone is the screen via Bluetooth and the free VictronConnect app. View real