Intro: A flat battery doesn’t always mean it’s dead. Most causes are simple and fixable.
1. Short trips
Frequent short drives don’t give the battery time to recharge.
2. Interior lights left on
Boot lights and glovebox lights drain batteries quietly.
3. Old battery
Most last 3–5 years.
4. Cold weather
Batteries lose power in winter.
5. When to get it tested
If it keeps dying, the alternator may not be charging it.
Summary: Most flat batteries are caused by short trips, age, or lights left on.