Can you still drive with a flat battery?
The battery warning light is on. Can you still drive? For how long? Here's what you need to know about batteries, alternators and when to stop.
How the battery and alternator work together
The alternator generates electricity while the engine runs and charges the battery. If the battery warning light comes on while driving, the alternator has stopped charging — you're running on the battery's remaining charge.
Risks of driving with a near-flat battery
The engine may stall, electrical systems may fail (lights, windows, central locking), and the car may not restart after stopping. Count on 15–30 minutes before the battery is fully drained.
What to do when the battery light comes on
Turn off non-essential electrical systems (AC, radio, heated seats) and head directly to the nearest garage. Avoid stopping the engine unless necessary.
👉 Need help? Submit your request and get connected to an available roadside assistance provider in your area.
Frequently asked questions
How long can I drive with the battery light on?
Typically 15–30 minutes, but this varies. Head to a garage immediately.
Related articles
10 April 2026 · 6 min read
Broken down in Belgium? Here's what to do
Breaking down is stressful, but it happens to everyone. Whether you're stuck on the E40 near Brussels or stranded in a quiet street in Antwerp, knowing what to do makes all the difference. Follow these steps to stay safe and get help fast.
Read more →12 April 2026 · 7 min read
Car won't start? Causes and solutions
You turn the key and nothing happens. Or you hear a click, a faint whir — but the engine won't fire. A car that won't start is one of the most frustrating breakdowns. Here are the most common causes and what you can do.
Read more →Broken down?
Submit your request in under 2 minutes. It's forwarded to available partners in your area.