How to start a hybrid car with a dead battery
Starting a hybrid car with a dead battery may seem daunting… but it’s pretty straightforward once you know what to do!
Hybrid vehicles use both a conventional 12-volt battery and a high-voltage battery pack. If the 12-volt battery dies, the car won’t start.
However, jump-starting a hybrid car is similar to jump-starting a traditional vehicle, requiring only a few tools and precautions.
Here’s a detailed guide to get you safely back on the road.
- Understanding hybrid cars’ high-voltage
- Is it possible to jump-start a hybrid car?
- Step-by-step guide to jump-starting a hybrid car
- FAQs
Understanding hybrid cars’ high-voltage and 12-volt batteries
Hybrid cars have two batteries:
🔋 1x high-voltage battery that powers the electric motor and improves fuel efficiency.
🔋 1x 12-volt battery that handles conventional functions like starting the engine and running accessories.
When the 12-volt battery runs out, the car won’t start. This is even the case if the high-voltage battery is fully charged.
The lifespan of hybrid cars’ batteries
The lifespan of hybrid car batteries varies depending on the type and usage. Typically, the high-voltage battery lasts between 8 to 15 years or about 100,000 to 150,000 miles. The 12-volt battery, similar to those in conventional cars, usually lasts 3 to 5 years.
Regular maintenance and mindful driving can extend these lifespans, ensuring you get the best out of batteries and avoid costly replacements. Always consult your vehicle’s manual for specific care instructions.
Is it possible to jump-start a hybrid car?
The difference between jump-starting a hybrid and a conventional car
Jump-starting a hybrid car differs from a traditional vehicle mainly because of the high-voltage battery. While the basic process remains similar, using jumper cables to connect to a working 12-volt battery in a hybrid car requires extra caution:
👍 Always refer to the owner’s manual for specific instructions.
👍 Ensure the jumper cables are connected correctly to avoid damaging the sensitive electronics in the hybrid system.
👍 Follow the correct safety precautions.
Step-by-step guide to jump-starting a hybrid car
Locate the battery and access points
The 12-volt battery in hybrid cars is often found in unconventional locations, for example, in the trunk or under a seat, unlike conventional cars’ traditional engine bay placement. However, some hybrids have dedicated jump-start terminals under the bonnet for easier access.
Refer to your vehicle’s manual to find the exact location.
Connect the jumper cables
It’s essential to follow this process when connecting the jumper cables:
- Attach the red positive cable to the dead battery’s positive terminal
- Connect it to the positive terminal of the donor battery.
- Attach the black negative cable to the negative terminal of the donor battery
- Attach it to an unpainted metal surface on your hybrid.
- Make sure the connections are secure and correct to avoid electrical damage.
For specific guidelines, always follow your vehicle’s manual.
Start the donor vehicle
Once the jumper cables are correctly connected, start the donor vehicle and let it run for a few minutes. This allows the 12-volt battery to transfer power to your hybrid’s dead battery.
Keep the donor vehicle running to ensure a steady flow of electricity, which helps revive the dead battery. Monitor what’s happening at this stage to avoid mishaps and ensure a successful jump-start.
Successfully reviving your hybrid’s battery
After allowing the donor vehicle to run for a few minutes, attempt to start your hybrid car. If it starts, leave it running to allow the 12-volt battery to recharge fully.
Disconnect the jumper cables in reverse order, being cautious not to let them touch. If your hybrid doesn’t start, double-check connections and repeat the process.
If issues persist, seek professional assistance to avoid damaging the hybrid system.
FAQs
How environmentally friendly is it to dispose of an EV battery?
When handled correctly, disposing of an EV battery can be environmentally friendly. Many manufacturers and specialised recycling facilities are equipped to handle EV battery recycling. They recover valuable materials like lithium, cobalt, and nickel. This process reduces the need for mining new resources and minimises environmental impact. Additionally, some EV batteries are repurposed for second-life applications, such as energy storage, further enhancing their sustainability.
What is regenerative braking, and how does it work?
Regenerative braking is a system in electric vehicles that captures and converts kinetic energy back into electrical energy during braking. Instead of wasting energy as heat, this technology stores it in the battery, extending the vehicle’s range. It’s an intelligent way to improve efficiency and reduce wear on traditional braking components. Simply put, you’re helping to recharge your EV whenever you brake!
Is it time to sell your car?
Ready to learn more about valuing, maintaining, and selling your car? Check out more of our guides here, covering everything from hybrid and electric car depreciation to converting your car to dual-LPG fuel.