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Victron Vanlife 12V Solar Calculator

Compute battery Ah and panel watts for Victron Vanlife usage at 12V with 4.7 peak sun hours and 2-day autonomy.

Sizing Snapshot

Daily Energy

2560 Wh

Battery Bank

515.3 Ah

Solar Array

743 W

Inverter Baseline

375 W

Appliance	Power	Daily Runtime	Wh/Day
Fridge (60W x 24h)	60 W	24.00 h	1440 Wh
Starlink (75W x 8h)	75 W	8.00 h	600 Wh
CPAP (40W x 8h)	40 W	8.00 h	320 Wh
LED Lights (40W x 5h)	40 W	5.00 h	200 Wh

Always-on vanlife architecture with conservative autonomy headroom.

Brand keyword pages map typical duty-cycle patterns to speed up first-pass sizing decisions.

Validate actual appliance telemetry after install and update sizing margins if runtime differs.

Use the interactive calculator to test alternative voltage and autonomy assumptions quickly.

Yes, the model applies chemistry-specific assumptions for DoD and charging to keep estimates closer to practical planning ranges.

Use this for planning and shortlist decisions, then validate with measured appliance duty cycles and local irradiance history.

For this load profile, estimated LIFEPO4 bank sizing is 515.3 Ah at 12V with 2-day autonomy.

The calculator estimates 743 W panel capacity after charge and derate factors.