πŸ”ŒEV V2L Runtime Calculator

Calculate how long your EV can power appliances via V2L during camping or power outages.

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What Is EV V2L Appliance Runtime?

V2L (Vehicle to Load) lets your EV supply power to external appliances from its battery. It is extremely useful when camping or during power outages. Runtime depends on battery level, appliance wattage, and inverter efficiency. This calculator gives you an instant estimate so you can plan power use confidently.

Formula

Runtime (hrs) = Battery (kWh) Γ— Efficiency (%) Γ· Appliance Power (kW)

Inverter efficiency is typically 85–95%. The default is 90%. Lower it slightly for cold weather or an aging battery pack.

Common Appliance Wattages

Rice cooker ~1,200W, electric kettle ~1,500W, refrigerator ~150W, laptop ~50W, portable AC ~1,000W, microwave ~2,000W. Appliances exceeding V2L max output (usually 3.5 kW) cannot be powered.

FAQ

Can I run an air conditioner with V2L?

Yes, a portable unit (700–1,000W) works fine. Central AC exceeding V2L max output cannot be used. A 30 kWh battery powering a 1,000W AC gives about 27 hours of runtime.

Is it safe to fully discharge via V2L?

Avoid draining to 0%β€”it shortens battery lifespan. Keep at least 20% remaining. Many EVs automatically cut V2L when the battery drops below a safety threshold.

Why is actual runtime shorter than calculated?

Cold weather, battery aging, and running multiple appliances simultaneously all reduce usable energy. Budget a 20–30% safety margin when planning.