Peugeot 5008 12 V Battery and Jump Starting (2017-present)

Hello and welcome. In this article we look at the 12 V battery on the Peugeot 5008 II (2017-present). We will cover safe handling, jump starting, charging, and disconnecting and reconnecting it, along with the 48 V battery on hybrids and the accessory batteries on rechargeable hybrids.

Quick Reference

Lead-acid starter batteries

Lead-acid starter batteries contain harmful substances: sulphuric acid and lead. They must be disposed of according to regulations and must never be thrown away with household waste. Take a used battery to a designated collection point.

Before you work on the battery:

• Protect your eyes and face before handling the battery.
• Always work in a well ventilated area, away from naked flames and sources of sparks, to avoid any risk of explosion or fire.
• Wash your hands afterwards.
• Electronic control units and LED headlamps: never connect the negative jump lead to the metal part of the electronic control units or to the back of the headlamps. You risk destroying the control units and/or the headlamps. Connect it to the remote earth point provided for this purpose.
• Frozen battery: never try to charge a frozen battery, as there is a risk of explosion. Have it checked by a PEUGEOT dealer or a qualified workshop. They will check that the internal components are not damaged and that the case has not cracked, which could lead to a leak of toxic and corrosive acid.
• Automatic gearbox: never try to start the engine by pushing the car.

What the battery symbols mean:

• No sparks or naked flames, no smoking.
• Always protect your eyes. Explosive gases can cause blindness and injury.
• Keep the battery out of the reach of children.
• The battery contains sulphuric acid, which can make you go blind or cause severe burns.
• Refer to the handbook for more information.
• Explosive gases can be present close to the battery.

With petrol/Diesel engines

On petrol and Diesel versions, this is the procedure for starting the engine using another battery, or for charging a flat battery.

Accessing the battery

The battery is under the bonnet. To reach the (+) terminal:

1. Release the bonnet: pull the internal release lever, then the external safety catch.
2. Open up: raise the bonnet.

• (+) terminal: the positive terminal, with a quick-release terminal.
• (-) terminal: the negative terminal. It is not accessible, so a remote earth point is located near the battery.

Starting using another battery

If your battery is flat, you can start the engine using a backup battery (either a separate one or from another vehicle) and jump leads, or using a battery booster.

• Never start the engine by connecting a battery charger.
• Never use a 24 V or higher battery booster.
• Check first that the backup battery has a nominal voltage of 12 V and a capacity at least equal to that of your flat battery.
• The two vehicles must not touch each other.
• Switch off all electrical equipment on both vehicles (audio system, wipers, lighting, etc.).
• Keep the jump leads well away from the engine's moving parts (fan, belt, etc.).
• Do not disconnect the (+) terminal while the engine is running.

1. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
2. Red cable: connect it to the (+) terminal of your flat battery (at the metal elbow), then to the (+) terminal of the backup battery or the booster.
3. Green or black cable, first end: connect it to the (-) terminal of the backup battery or the booster (or to an earth point on the assisting vehicle).
4. Green or black cable, other end: connect it to the earth point on your car.
5. Assisting vehicle: start its engine and leave it running for a few minutes.
6. Your car: operate the starter and let the engine run. If the engine does not start straight away, switch off the ignition and wait a few moments before trying again.
7. Idle: wait for the engine to return to idle.
8. Remove the leads: disconnect the jump leads in reverse order.
9. Cover the terminal: refit the plastic cover to the (+) terminal, if your car has one.
10. Recharge: let the engine run for at least 30 minutes with the car stationary, so the battery reaches an adequate state of charge.

If you drive off straight away without enough charge, some functions, such as Stop & Start, may be affected.

Charging the battery using a battery charger

Keeping the battery adequately charged is essential for its service life. You may need to charge it if you mainly use the car for short journeys, or if the car will be off the road for several weeks. Ask a PEUGEOT dealer or a qualified workshop for advice.

• If you charge the battery yourself, use only a charger compatible with lead-acid batteries with a nominal voltage of 12 V.
• Follow the instructions from the charger's manufacturer.
• Never reverse the polarities.
• You do not need to disconnect the battery.

1. Ignition: switch the ignition off.
2. Electrical consumers: switch off the audio system, lighting, wipers, etc.
3. Charger off: switch off the charger before connecting its cables to the battery, to avoid dangerous sparks.
4. Check the cables: make sure the charger cables are in good condition.
5. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
6. Red cable: connect the positive (+) red cable to the (+) terminal of the battery.
7. Black cable: connect the negative (-) black cable to the earth point on the car.
8. Finish: at the end of charging, switch off the charger before disconnecting its cables from the battery.

If your car has a label calling for a 12 V charger, use only a 12 V charger to avoid irreversible damage to the electrical components.

Disconnecting and reconnecting the 12 V battery

If the car will be unused for an extended period, disconnecting the battery is recommended, so it keeps enough charge to start the engine. Before disconnecting it:

1. Openings: close all doors, the boot, the windows and the roof.
2. Electrical devices: switch off the audio system, wipers, lamps, etc.
3. Ignition: switch off the ignition and wait for 4 minutes.

Once you have reached the battery, you only need to disconnect the (+) terminal, which has a quick-release clamp.

To disconnect the (+) terminal:

1. Cover: depending on equipment, lift the plastic cover on the (+) terminal.
2. Lever: raise the lever (A) fully to release the clamp (B).
3. Clamp: lift the clamp off.

To reconnect the (+) terminal:

1. Lever: raise the lever fully.
2. Clamp: refit the open clamp on the (+) terminal.
3. Push down: push the clamp fully down.
4. Lock: lower the lever to lock the clamp.
5. Cover: depending on equipment, lower the plastic cover on the (+) terminal.

Do not force the lever. If the clamp is not positioned correctly, it will not lock, so start the procedure again. After the first engine start, Stop & Start may not work during that trip. It only becomes available again after the car has been left unused for a continuous period, which depends on the outside temperature and the battery's state of charge (up to about 8 hours).

With hybrid engines

On hybrid versions, this is the procedure for starting the engine using another battery, or for charging a flat 12 V or 48 V battery.

Starting using another battery

The hybrid system starts the car, but it needs a 12 V supply, and there are several reasons why the car may not start. If the 12 V battery is flat, you can provide the 12 V supply using a backup battery (either a separate one or from another vehicle) and jump leads, a battery booster or a battery charger.

• Never use a 24 V or higher battery booster.
• Check first that the backup battery has a nominal voltage of 12 V and a capacity at least equal to that of your flat battery.
• The two vehicles must not touch each other.
• Switch off all electrical equipment on both vehicles (audio system, wipers, lighting, etc.).
• Keep the jump leads well away from the engine's moving parts (fan, belt, etc.).
• Do not disconnect the (+) terminal while the engine is running.

1. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
2. Red cable: connect it to the (+) terminal of your flat battery (at the metal elbow), then to the (+) terminal of the backup battery or the booster.
3. Green or black cable, first end: connect it to the (-) terminal of the backup battery or the booster (or to an earth point on the assisting vehicle).
4. Green or black cable, other end: connect it to the earth point on your car.
5. Assisting vehicle: start its engine and leave it running for a few minutes.
6. Your car: operate the starter and let the engine run. If the engine does not start straight away, switch off the ignition and wait a few moments before trying again.
7. Idle: wait for the engine to return to idle.
8. Remove the leads: disconnect the jump leads in reverse order.
9. Cover the terminal: refit the plastic cover to the (+) terminal, if your car has one.
10. Recharge: let the engine run for at least 30 minutes with the car stationary, so the battery reaches an adequate state of charge.

If you drive off straight away without enough charge, some functions, such as e-Auto mode, may be affected.

Charging the 12 V battery using a battery charger

Keeping the battery adequately charged is essential for its service life. You may need to charge it, for example if the car will be off the road for several weeks. Ask a PEUGEOT dealer or a qualified workshop for advice.

• The hybrid system is connected to the 12 V network through the DC/DC converter, so any work may affect how the whole system behaves.
• If you charge the battery yourself, use only a charger compatible with lead-acid batteries with a nominal voltage of 12 V.
• Follow the instructions from the charger's manufacturer.
• Never reverse the polarities.
• You do not need to disconnect the battery.

1. Ignition: switch the ignition off.
2. Electrical consumers: switch off the audio system, lighting, wipers, etc.
3. Charger off: switch off the charger before connecting its cables to the battery, to avoid dangerous sparks.
4. Check the cables: make sure the charger cables are in good condition.
5. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
6. Red cable: connect the positive (+) red cable to the (+) terminal of the battery.
7. Black cable: connect the negative (-) black cable to the earth point on the car.
8. Finish: at the end of charging, switch off the charger before disconnecting its cables from the battery.

Charging the 48 V battery using a 12 V battery charger

If the car will not start, first follow the steps in "Starting using another battery" above. If that fails, especially after long storage, the 48 V battery may be flat and need charging.

• Do not try to charge the hybrid system directly.
• The hybrid system is connected to the 12 V network through the DC/DC converter, so any work may affect how the whole system behaves.
• Use only a specific 12 V battery charger capable of maintaining 13.5 V with a high level of current, 40-50 A (approx. 600 W).
• Use only a charger compatible with lead-acid batteries with a nominal voltage of 12 V.
• Never use a 24 V or higher battery booster.
• Follow the instructions from the charger's manufacturer.
• Never reverse the polarities.
• You do not need to disconnect the battery.

1. Ignition: switch the ignition off.
2. Electrical consumers: switch off the audio system, lighting, wipers, etc.
3. Charger off: switch off the charger before connecting its cables to the 12 V battery, to avoid dangerous sparks.
4. Check the cables: make sure the charger cables are in good condition.
5. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
6. Red cable: connect the positive (+) red cable to the (+) terminal of the 12 V battery.
7. Black cable: connect the negative (-) black cable to the earth point on the car.
8. Wake the car: open the driver's door and turn the ignition on without pressing the brake pedal.
9. Let it charge: with a 12 V supply higher than 13.5 V, the hybrid system starts charging the 48 V battery automatically after 1 minute. The charger should supply about 30-50A. Once the 48 V battery reaches the right energy level (between 30 to 40 minutes, depending on the 12 V battery's state of charge), the hybrid system stops charging automatically.
10. Charger off: at the end of charging, switch off the charger before disconnecting its cables from the 12 V battery.
11. Cover the terminal: refit the plastic cover to the (+) terminal, if your car has one.
12. Start: operate the starter and let the engine run.
13. Idle: wait for the engine to return to idle.
14. Recharge: let the engine run for at least 20 minutes with the car stationary, in a ventilated area so exhaust gases do not build up, so the 48 V battery reaches an adequate state of charge.

With rechargeable hybrid engines

The rechargeable hybrid system has two accessory batteries, one at the front and one at the rear of the car. To replace them, contact a PEUGEOT dealer or a qualified workshop. Never use these accessory batteries to start or jump-start another vehicle.

Accessing the front battery

The front battery is under the bonnet. To reach the (+) terminal:

1. Release the bonnet: pull the internal release lever, then the external safety catch.
2. Open up: raise the bonnet.

• (+) terminal: the positive terminal, with a quick-release terminal.
• (-) terminal: the negative terminal. It is not accessible, so a remote earth point is located near the battery.

Accessing the rear battery

The rear battery is in the boot. To reach it, lift the boot floor.

• (+) terminal: the positive terminal, protected by a red plastic cover and not accessible.
• (-) terminal: the negative terminal, with a black quick-release connector.

Charging the front battery using a battery charger

Keeping the front battery adequately charged is essential for its service life. You may need to charge it if you mainly use the car for short journeys, or if the car will be off the road for several weeks. Ask a PEUGEOT dealer or a qualified workshop for advice.

• If you charge the front battery yourself, use only a charger compatible with lead-acid batteries with a nominal voltage of 12 V.
• Follow the instructions from the charger's manufacturer.
• Never reverse the polarities.
• You do not need to disconnect the battery.

1. Ignition: switch the ignition off.
2. Electrical consumers: switch off the audio system, lighting, wipers, etc.
3. Charger off: switch off the charger before connecting its cables to the battery, to avoid dangerous sparks.
4. Check the cables: make sure the charger cables are in good condition.
5. Uncover the terminal: lift the plastic cover on the (+) terminal, if your car has one.
6. Red cable: connect the positive (+) red cable to the (+) terminal of the battery.
7. Black cable: connect the negative (-) black cable to the earth point on the car.
8. Finish: at the end of charging, switch off the charger before disconnecting its cables from the battery.

Disconnecting and reconnecting the accessory batteries

Use this procedure if the car will be left unused for a long time. Never change the order of the disconnection and reconnection steps, as there is a risk of irreversible damage. Before disconnecting:

1. Doors: open the driver's door and the boot.
2. Other doors: close all the other doors.
3. Electrical consumers: switch off the audio system, wipers, lamps, etc.
4. Ignition: switch off the ignition and wait for the READY indicator lamp to go out.
5. Wait: wait for 4 minutes.

To disconnect:

1. Rear battery: disconnect the (-) terminal using the black quick-release connector.
2. Front battery, lever: raise the lever (A) of the red quick-release clamp fully to release the clamp (B).
3. Front battery, clamp: lift the clamp off the (+) terminal.

To reconnect:

1. Front battery, lever: raise the lever of the red quick-release clamp fully.
2. Front battery, clamp: refit the open clamp on the (+) terminal.
3. Front battery, push down: push the clamp fully down.
4. Front battery, lock: lower the lever to lock the clamp.
5. Rear battery: connect the (-) terminal using the black quick-release connector.

Following reconnection

After reconnecting the battery, turn on the ignition and wait 1 minute before starting the engine, so the electronic systems can initialise. On right-hand drive versions, once the total distance recorder has reached 62 miles (100 km), you must wait approximately 15 minutes before starting the engine.

Then reinitialise the following equipment, using the relevant section of the handbook:

• Remote control key or electronic key (depending on version).
• Sunroof and electric blind.
• Electric windows.
• Date and time.
• Preset radio stations.

When you switch on the ignition, the message "Collision risk detection system fault" appears on the instrument panel. This is perfectly normal and the message disappears while driving. If minor problems persist after all this, contact a PEUGEOT dealer or a qualified workshop.

Frequently Asked Questions

How do I jump start a Peugeot 5008 with a flat battery?

Connect the red cable to the (+) terminal of your flat battery, then to the (+) terminal of the backup battery, and connect the green or black cable from the backup battery's (-) terminal to your car's earth point. Start the assisting vehicle, leave it running for a few minutes, then start your 5008, and never use a 24 V or higher booster.

Where is the 12 V battery on a Peugeot 5008?

The battery is under the bonnet, and because its negative terminal is not accessible, there is a remote earth point near the battery. On rechargeable hybrid versions there is also a second accessory battery under the boot floor.

Why does my Peugeot 5008 say Collision risk detection system fault after a battery disconnection?

This message appears when you switch on the ignition after reconnecting the battery, and the handbook says this is perfectly normal. It disappears while you are driving.

Why is Stop & Start not working after reconnecting the battery?

Stop & Start may not work during the trip after the first engine start. It becomes available again after the car has been left unused for a continuous period, which depends on the outside temperature and the battery's charge (up to about 8 hours).

Handled with care, the battery on your Peugeot 5008 is straightforward to jump start, charge or disconnect. Follow the steps in the right order, keep the safety warnings in mind, and if anything is unclear, contact a PEUGEOT dealer or a qualified workshop.

More Peugeot 5008 Guides

If a warning lamp comes on after a battery problem, see our guides to Peugeot 5008 red warning lights, Peugeot 5008 orange warning lights and Peugeot 5008 green and blue indicator lamps.

Don't forget to follow us on Instagram for more Peugeot guides!

For more on this model, visit our Peugeot 5008 guides.

Cover adapted from a photograph by M 93: Wikimedia Commons, CC BY-SA 3.0 de.