2706IN General information on AGM vehicle battery
WM 2706IN General information on AGM vehicle battery
Tools
Technical values
Information
NOTICE
A battery charger for providing an external power supply or for jump-lead starting is connected directly to the battery in the vehicle.
- Risk of damage to the battery sensor.
- Battery sensor sends incorrect battery values to the vehicle electrical system.
-> Always connect a battery charger for providing an external power supply or for jump-lead starting to the defined connections in the engine compartment. -> 2X00IN Battery trickle charging 2X00IN Battery trickle charging
Information
The AGM (Absorbent Glass Mat) battery is a maintenance-free, sealed battery.
- This battery must not be opened. If the battery is opened, it must be replaced.
- There is a serial number and a part number on the top of the battery at the right-hand side.
Serial number and part number on battery
- If the battery is replaced, both numbers must be entered in the gateway control unit under: Gateway/Maintenance, repairs/Change battery.
- The battery size and battery manufacturer must also be entered when changing the battery.
Information
- To prevent contact corrosion, only approved bolts, nuts, washers, etc. should be used. These elements have a special surface coating and must be stored separately.
The battery is one of the most important electrical components in the vehicle. Fault-free functioning of the battery contributes greatly to customer satisfaction. To guarantee long and efficient operation, the battery must be checked and maintained according to the description in this information.
Besides the start function, the battery also has the tasks of buffer and supplier of electrical power for the entire vehicle electrical system.
An AGM (Absorbent Glass Mat) battery is used as standard on the Panamera (G1). The AGM battery offers the following advantages, for example:
- Sealed, valve-regulated battery
- High-cycle battery
- High cold-start performance
- Cannot leak or tilt
- Totally maintenance-free
- Shake-resistant
- No acid leakage if the housing is damaged
- Flexible installation and safe to handle
- High load capacity and longer service life
- Ideal for Start/Stop function
Battery handling instructions
Information
- The tightening torque for the battery terminals is => Torque: 6 Nm (4.5 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.).
- If the battery is reconnected, proceed according to -> 2X0000 Work instructions after disconnecting the battery 2X00IN Work instructions after disconnecting the battery.
Information
- Battery terminals do not need to be greased.
- The battery terminal clamps should only be attached by hand - without excessive force - to prevent damage to the battery.
- The tightening torque for the battery terminals is => Torque: 6 Nm (4.5 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.).
- If the battery is reconnected, proceed according to -> 2X0000 Work instructions after disconnecting the battery 2X00IN Work instructions after disconnecting the battery.
Warning notes and safety regulations for batteries
1. -1- Avoid fire, sparks and naked flames. No smoking:
- Avoid sparking when using cables and electrical devices.
- Avoid short circuits.
- In batteries with central venting, there is an increased concentration of detonating gas at the hose opening. The venting hose must not be bent or blocked by dirt.
Battery symbols
2. -2- Wear eye protection.
3. -3- Keep children away from acids and batteries.
4. -4- Risk of acid burns:
- Battery acid is highly caustic, therefore wear protective gloves.
- Do not tip battery; acid can emerge from the vent opening.
Information
- First aid: Rinse acid splashes in the eyes immediately with clean water for a few minutes. Consult a doctor immediately. Neutralise acid splashes on the skin or clothing immediately with soap suds and rinse again with plenty of water. If acid has been drunk unintentionally, consult a doctor immediately.
5. -5- Follow the instructions on the battery, in this information and in the Driver's Manual.
6. -6- Risk of explosion:
- A highly explosive detonating gas mixture occurs when charging batteries.
7. -7- Disposal:
- Hand in old batteries at a collection point.
8. -8- Never dispose of old batteries in domestic rubbish!
Notes on removing and installing the battery
NOTICE
A battery charger for providing an external power supply or for jump-lead starting is connected directly to the battery in the vehicle.
- Risk of damage to the battery sensor.
- Battery sensor sends incorrect battery values to the vehicle electrical system.
-> Always connect a battery charger for providing an external power supply or for jump-lead starting to the defined connections in the engine compartment. -> 2X00IN Battery trickle charging 2X00IN Battery trickle charging
Information
- The battery is located in the luggage compartment under the loadspace floor.
- In order to avoid triggering the siren in vehicles with an additional alarm siren, the battery must be disconnected while the ignition is on!
- All loads must be switched off beforehand! Remove ignition key!
- Never disconnect battery with engine running!
- Never start engine without a securely connected battery!
- To prevent damage to the battery, the battery terminal clamps should only be attached by hand - without excessive force.
- Check that the battery is seated correctly after installation. A loose battery presents other dangers, such as: - Reduced service life due to vibration damage. - Noises. - Damage to the battery housing from mounting parts. - Inadequate crash safety.
How central venting works
Information
- State-of-the-art batteries are fitted with central venting -A-.
- In certain battery states, the gas produced during charging can emerge centrally through an opening on the upper cover side. Backfire protection is integrated at the same position. This prevents the ignition of the combustible gas present in the battery.
- In batteries that have a hose/pipe -A- for central venting, make sure that the hose is not disconnected. The battery can only be freely vented when this hose/pipe is connected.
Central venting
Visual inspection
A visual inspection of the battery must be performed before taking measurements, e.g. measuring the open-circuit voltage, or before carrying out the battery load test.
This inspection can be used to determine:
- Whether the housing of the battery is damaged. The leak-free operation and function of the battery cannot be guaranteed if the housing is damaged.
- Whether the battery terminals (battery line connections) are damaged. Contact of the line connections cannot be guaranteed if the battery terminals are damaged. This can cause a line fire and malfunctions in the electrical system.
Checking battery vent hose
Information
- Make sure that the vent hose -A- is not kinked or damaged. If in doubt, replace it.
- Vent hose -A- must be inserted in the battery and in the battery box.
Central venting
Open-circuit voltage measurement
Information
- Compared with the value from PIWIS Tester 2 9818, the battery voltage can be measured using a hand-held multimeter.
- Proceed as follows:
Information
The open-circuit voltage measurement should be read out using PIWIS Tester 2 9818 in the Gateway control unit by selecting Energy management, Quick closed-circuit current measurement in the menu.
1. Switch off ignition and remove ignition key.
2. Disconnect ground strap on the battery.
Information
- After charging and waiting for at least 2 hours, during which time the battery should neither be loaded nor charged:
3. Measure the battery voltage with a hand-held multimeter.
- The battery open-circuit voltage should not fall below 12.5V.
- If the hand-held multimeter shows 12.5V or more, the battery voltage is OK.
- If the hand-held multimeter shows a battery voltage below 12.5V: Charge battery.
Charging battery
WARNING
Highly inflammable or explosive materials
- Danger of fire or explosion
-> Avoid contact with hot parts or sources of ignition.
-> Use suction to remove ignitable vapours.
-> Attach warning sign in a clearly visible position.
Information
- A battery charging device is required.
- Observe charging device operating instructions.
- The battery must have a minimum temperature of 0°C.
- If possible, do not fast charge batteries as this can damage them.
- If exhaustively discharged batteries are charged quickly, they will not take up a charge current or they will be identified too early as full due to the so-called "surface charge".
NOTICE
A battery charger for providing an external power supply or for jump-lead starting is connected directly to the battery in the vehicle.
- Risk of damage to the battery sensor.
- Battery sensor sends incorrect battery values to the vehicle electrical system.
-> Always connect a battery charger for providing an external power supply or for jump-lead starting to the defined connections in the engine compartment. -> 2X00IN Battery trickle charging 2X00IN Battery trickle charging
1. Switch off battery charging device.
2. Switch off ignition and remove ignition key.
3. Connect wires from the charger to the external power supply points.
4. Set the charge current on the battery charging device according to the battery capacity.
5. Switch on battery charging device.
Procedure for charging exhaustively discharged batteries:
Batteries which are not in operation for a long period of time discharge.
A battery is exhaustively discharged if the open-circuit voltage has sunk below 11.6 V.see open-circuit voltage measurement
In exhaustively discharged batteries, the battery acid (sulphuric acid and water mixture) consists of virtually only water, as the sulphuric acid proportion is considerably reduced.
Exhaustively discharged batteries sulphatise, i.e. the entire plate surfaces of the batteries harden.
If exhaustively discharged batteries are immediately recharged after an exhaustive discharge, the sulphatisation recedes again.
If these batteries are not recharged, the plates continue to harden and charge take-up ability is limited. A reduction in the battery performance is the result.
Exhaustively discharged batteries must be charged with a low charge current as follows:
- Set charge current to maximum 10% of battery capacity, i.e. with a 95 Ah battery the charge current is max. 9.5 A.
6. Charge battery.
Battery trickle charge
Information
- When working or carrying out tests on the vehicle or when the vehicle is in the workshop, a battery charger with a rated current of at least 40 A must be connected.
- As soon as the vehicle is unlocked, e.g. the vehicle is in the workshop or salesroom, it must be trickle charged with a battery charging device.
1. Switch off battery charging device.
2. Switch off ignition and remove remote control.
3. Switch off all loads (e.g. lights).
4. Open protective cover on the positive terminal for jump-lead starting -+- ( -arrow- ).
Protective cover on positive terminal for jump-lead starting
5. Connect the positive cable to the positive terminal for jump-lead starting -+- , then to the positive terminal of the donor battery.
6. Connect the negative cable to the negative terminal of the donor battery first, then to the ground point for jump-lead starting ---.
7. Set the charge current on the battery charger according to the battery capacity.
8. Switch on battery charger.
Connecting the battery for trickle charging
Information
A charger with a current rating of at least 40 A must be connected to the external power supply points/jump-lead starting points.
Set the charger to maximum A (amps).
Switch off all unnecessary loads (e.g. lights).
When working on the vehicle for more than 15 minutes
When running a diagnosis using the Porsche System Tester
When adjusting the headlights
When working on or with the Infotainment system
If the doors, bonnet and rear lid are open for a long period of time or if these components are actuated frequently