A flat battery — why it happens and when a jump start will not help
Batteries usually die at the first cold snap — but the cause has been building for months.
Symptoms
- Dim headlights
- Slow cranking
- Dashboard flickering when starting
- The car only starts with help
A battery lasts on average 4–6 years. After that, every cold morning could be its last.
Common causes: short city trips where the battery never fully recharges; lights left on; a consumer left running; a faulty alternator; corroded terminals.
When a jump start will NOT help: if the battery has an internal short (it holds no charge at all), if the real fault is the alternator, or if a lithium battery is deeply discharged. In those cases the car dies again within minutes.
Quick check: start the engine and disconnect a terminal — if the engine stops, the alternator is not charging.
When you need a tow: when the car will not start after a jump, or dies again shortly after. We take it to a garage instead of you restarting it five times along the way.
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