Solar Charge Time Calculator
How many sun-hours to recharge your battery from empty.
About the Solar charge time calculator
Use this solar charge time calculator for van leisure battery & solar setup. How many sun-hours to recharge your battery from empty.
Enter your solar charge time details
Panels rarely hit nameplate — 70–80% is realistic.
Note
"Sun-hours" means hours of full peak sun — you typically get 3–5 of those across a UK summer day. Cloud, angle and temperature all reduce real output.
Your solar charge time results
Energy to add
960 Wh
from 20% to 100%
Effective output
150 W
75% real-world
Sun-hours to full
6.4 h
≈ 1.6 avg days
Why solar charge time matters for van leisure battery & solar setup
Plan with confidence
Getting your solar charge time numbers right early avoids costly rework, undersized components and surprises on the road.
Related battery & solar tools
Pair this with the rest of our battery & solar calculators to plan your full van conversion.
Solar charge time calculator FAQ
- What does the Solar Charge Time Calculator do?
- How many sun-hours to recharge your battery from empty. It is designed for van leisure battery and solar so you can plan with confidence.
- Is the solar charge time calculator free to use?
- Yes. All VanTools calculators, including the Solar Charge Time Calculator, are free to use with no sign-up required.
- How accurate are the solar charge time results?
- Results are estimates based on the values you enter and standard van leisure battery and solar assumptions. Always sanity-check against manufacturer data and your real-world conditions.
- Can I share or save my solar charge time calculation?
- Yes. Use the Share button to copy a link that includes your inputs, or use Export to download a PDF or image of your results.