Sizing Snapshot
Daily Energy
2560 Wh
Battery Bank
128.8 Ah
Solar Array
743 W
Inverter Baseline
375 W
Solar pSEO Landing
Victron Vanlife 48V Solar Calculator
Compute battery Ah and panel watts for Victron Vanlife usage at 48V with 4.7 peak sun hours and 2-day autonomy.
Load Breakdown
| 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 |
Brand-Oriented Load Architecture
Always-on vanlife architecture with conservative autonomy headroom.
Related Long-Tail Solar Calculators
12V · 6h sun · 1 day 12V · 6h sun · 2 day 24V · 3h sun · 1 day 24V · 3h sun · 2 day 24V · 4h sun · 1 day 24V · 4h sun · 2 day 24V · 5h sun · 1 day 24V · 5h sun · 2 day 24V · 6h sun · 1 day 24V · 6h sun · 2 day 48V · 3h sun · 1 day 48V · 3h sun · 2 day 48V · 4h sun · 1 day 48V · 4h sun · 2 day 48V · 5h sun · 1 day 48V · 5h sun · 2 day 48V · 6h sun · 1 day 48V · 6h sun · 2 day
Sequential Long-Tail Navigation
FAQ
How many watts of solar panels are required for 4.7 peak sun hours?
The calculator estimates 743 W panel capacity after charge and derate factors.
Why does lower battery voltage usually require higher Ah?
For the same energy demand, lower voltage systems need more current. That translates into larger Ah requirements and often thicker cabling.
Should I oversize panels or batteries first?
In low-sun conditions, panel oversizing usually improves daily recovery. In high-cloud windows, additional battery autonomy reduces outage risk.
Is LIFEPO4 efficient for this load profile?
Yes, the model applies chemistry-specific assumptions for DoD and charging to keep estimates closer to practical planning ranges.