Jump Start or New Battery? How to Tell the Difference

Your car won’t start and the dashboard lights are dim or dead. Is it just a flat battery that needs a jump, or is the battery itself on its way out? Getting this right saves you a repeat breakdown a few days later.

Signs a jump start will sort it

If the car started fine yesterday, you left an interior light on overnight, or it’s been sitting unused for a couple of weeks, a flat battery is the most likely culprit. A jump start should get you going, and the alternator will top the battery back up as you drive.

Signs the battery itself needs replacing

If you’ve needed a jump start more than once in the past month, the engine cranks slowly even after charging, or the battery is more than 4–5 years old, it’s likely reached the end of its life. A jump will only buy you a day or two before it happens again.

Need a Jump Start in South East London?

If you’re unsure whether your battery just needs a boost or a full replacement, the safest first step is a professional jump start. We test how the car responds and give you honest advice about what to do next. Our jump start service covers Woolwich, Plumstead, Greenwich and the rest of South East London, 24/7, and we can arrange recovery if the car still won’t start.

Not sure which it is?

Our team carries battery testers on every call-out across Greenwich, Woolwich, Plumstead and South East London, so we can tell you on the spot whether a jump start will do or whether it’s time for a new battery — no guesswork.

Get a jump start or battery check from Recovery Car, available 24/7.

Related services

• Jump Start Service

Frequently asked questions