- If you accidentally connect a cable to the wrong terminal (reverse polarity), the integrated safety system will automatically detect the mistake and an error light will turn on.
How to jump-start a car battery
If your car isn’t starting because your battery is flat, there are 2 ways to get your vehicle up and running again: you can boost your battery with starting cables or a jump starter.Starting cables vs. Jump starter How to boost in 7 steps
Starting cables allow you to boost a battery using another battery from a rescue vehicle. When the rescue vehicle’s engine is running, the battery inside can be used to boost the flat battery. The alternator then takes over to recharge the boosted battery.
Although starting cables are affordable, they have a few downsides and can even be risky to use:
Why we recommend you use a jump starter
Whether it’s -30°C outside, or you’re far from home, you’ll always have peace of mind with a jump starter. Here’s why   :
How to jump-start your battery in 7 steps:
Since batteries contain harmful chemicals, it’s important to check that your battery isn’t damaged/deformed, and that there are no odours coming from the battery before jump-starting it.
To ensure an effective jump-start, make sure that all your accessories (lights, radio, fan, etc.) are turned off.
- Ensure that the terminals are clean and rust-free. Clean them if needed.
- Connect the red clamp to the positive terminal +
- Connect the black clamp to the negative terminal -
If the battery doesn’t start on the first attempt, wait 30 seconds and try to start the vehicle again. If that doesn’t work, another issue may be at cause, such as loose/corroded connection cables, or a problem with the starter/alternator. It’s also possible that your battery has reached the end of its life cycle and needs to be replaced.
3 signs it’s time to change your car battery
- You’ve had it for 4 to 5 years
- It’s lacking power when you start up, even after having recharged it
- You have previously had to boost it several times