PEUGEOT 2008 Handbook page 160

In the event of a breakdown
Versions equipped with Stop & Start are
fitted with a 12 V lead-acid battery of
specific technology and specification.
Its replacement should be carried out
only by a PEUGEOT dealer or a qualified
workshop.
If you have an electronic or automatic
gearbox, never try to start the engine by
pushing the vehicle.
The Stop & Start system may not be
operational during the trip following the
first engine start.
In this case, the system will only be
available again after a continuous
period of immobilisation of the vehicle,
a period which depends on the exterior
temperature and the state of charge of the
battery (up to about 8 hours).
Access to the battery
The battery is located under the bonnet.
To access it:
158
F open the bonnet using the interior release
lever, then the exterior safety catch,
F secure the bonnet stay,
F lift the plastic cover on the (+) terminal.
The battery (-) terminal is not accessible.
A remote earth point is located on the right
side of the engine mounting.
Starting using another
battery
When your vehicle's battery is discharged, the
engine can be started using a backup battery
(external or from another vehicle) and jump
leads or using a battery booster.
Never try to start the engine by connecting
a battery charger.
Never use a 24 V or higher battery
booster.
Check beforehand that the backup
battery has a nominal voltage of 12 V and
a capacity at least equal to that of the
discharged battery.
The two vehicles must not be in contact
with each other.
Switch off all the electrical consumers
on both vehicles (audio system, wipers,
lighting, etc.).
Make sure that the jump leads are not
close to moving parts of the engine (fan,
belts, etc.).
Do not disconnect the (+) terminal while
the engine is running.
F Lift the plastic cover on the (+) terminal, if
your vehicle has one.