charging RENAULT SCENIC 2008 J84 / 2.G Electrical Equipment -Battery Workshop Manual

80A-4V4 MR-372-J84-80A000$030.mif
80A
IMPORTANT
•All vehicles are equipped with low water consumption batteries. Opening the battery and topping up the electrolyte
level are PROHIBITED.
•Batteries contain sulphuric acid, which is a hazardous chemical.
•Battery charging produces hydrogen and oxygen, which are very flammable gases and thus there is a risk of
explosion.
•Any batteries with filling plugs must not be opened under any circumstances but replaced immediately with Renault
approved batteries.
Battery recharging:
When parked, vehicles consume power through their permanent consumers and through any accessories fitted as
After-Sales options. To keep battery discharging to a minimum, limit the number of times the vehicle is started,
periods with the ignition on, doors open, etc., as much as possible.
A discharged battery must be recharged using a Renault-approved battery charger (see Technical Note 6512A,
Battery charging)
Battery storage:
Even when stored off the vehicle, a battery gradually discharges, and more rapidly if the ambient temperature is
high.
In order that a battery remains operational for a long time, it must be stored at a temperature of around
15 ˚C and protected from humidity.. To retain a good level of charge, it is recommended that a battery is completely
recharged after it has been stored for 3 months.
A new battery that has been stored for more than one year must not be fitted to a vehicle.IMPORTANT
•Simultaneous recharging of several batteries in series or in parallel is forbidden.
•A battery charger used on a battery connected to a vehicle can irreparably damage the vehicle computers due
to the high voltages created when charging.
•The location of the charger must take this into account (ventilation).
•A battery charger or a booster not approved by Renault can damage the electrical components.
BATTERY
Battery – Advice

80A-8V4 MR-372-J84-80A000$050.mif
BATTERY
Battery – Test80A
TEST1 Testing the battery
Has the engine been running in the past hour?
Switch off the engine and remove the key (or card) to interrupt the + after
ignition feed and switch the main beam headlights on for 2 minutes. Then
switch them off and wait 2 minutes.
Carry out a battery test using the MIDTRONICS tool (the information requested by the MIDTRONICS tool is
provided on the battery label).
What message is displayed by MITRONICS?
The device
does not light
up."Battery OK +
recharge" or
"Charge +
retest""Battery
sound""Incorrect component"
or "Replace battery""Test
impossible"
Test the test
equipment
on another
batteryRecharge the
battery (see
Technical Note
6512A,
Charging
batteries).The battery
is sound.Does the
message appear
for the first time?
Is the device
working?
Replace the
deviceCarry out a
charging circuit
test, Phase 1 (see
Technical Note
6014A), Phase 2
(see MR 372, 87G,
Engine
compartment
connection unit).
NO
YES
NO
YES
NO
YES
CAB

80A-9V4 MR-372-J84-80A000$050.mif
BATTERY
Battery – Test80A
TEST1
CONTINUED
Was the test carried out with the
battery disconnected?Disconnect both terminals of
the battery.
Always replace the battery with one that has the same
electrical and dimensional specifications
(see MR 370, Mechanical, 80A, Battery, Battery:
Removal – Refitting).
Start the vehicle again.
Does the vehicle restart?

The battery is sound.

Carry out a charging circuit test, Phase
1 (see Technical Note 6014A), Phase
2 (see MR 372, 87G, Engine
compartment connection unit).
AB
NO
YESC
NO
YES