Overview
Jump-start a compatible vehicle battery using the correct connection sequence and safety precautions.
Objective
Complete the task safely and confidently by preparing first, following the steps in order and checking the result when finished.
What You Need
- Jumper leads or approved jump starter
- Vehicle manuals
- Compatible power source
Before You Start
Gather everything you need and make sure the work area is suitable. Read product, appliance or manufacturer instructions where they apply, and do not continue if the task is outside your experience or cannot be done safely.
How to Do It
- Confirm that jump-starting is permitted for both vehicles and identify the correct terminals.
- Switch both vehicles off and keep the clamps separated.
- Connect the positive lead to the flat battery positive terminal, then to the donor positive terminal.
- Connect the negative lead to the donor negative terminal, then to the specified earth point on the disabled vehicle away from the battery where the manual directs.
- Start according to the vehicle instructions.
- Disconnect the leads in reverse order while keeping clamps apart.
Check Your Work
When finished, check that the result is secure, clean and working as expected. Put tools and materials away safely and clean the work area.
Useful Tips
Vehicle procedures vary, especially for hybrids, EVs and vehicles with remote jump points. Follow the owner's manual; if uncertain, use roadside assistance.
Common Mistakes
- Starting before gathering the correct tools or materials.
- Rushing steps that need careful positioning, measuring or checking.
- Ignoring product instructions, care labels or manufacturer guidance.
- Continuing when the task becomes unsafe or requires specialist knowledge.
Important Notes
Use this guide as a general everyday overview. Follow applicable manufacturer instructions, local requirements and professional advice for the specific equipment or situation you are dealing with.
FAQ
What if my equipment or situation looks different?
Stop and check the relevant instructions before continuing. Designs and procedures can vary.
When should I get professional help?
Get qualified help whenever the task involves a hazard, damage, specialist equipment or work you are not confident can be completed safely.