Charging the battery

WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

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 vapors.

→ Attach warning sign in a clearly visible position.

Information

A battery charger is required.
Read operating instructions for the charger.
The battery must have a minimum temperature of 0°C.
If possible, do not rapid-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".

NOTE: A battery charger for providing an external power supply or for jump-lead starting is connected directly to the battery in the vehicle.

Damage to 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

Switch off the battery charger.
Switch off ignition and remove ignition key.
Connect cables from the charger to the external power supply points.
Set the charge current on the battery charger according to the battery capacity.
Switch on the battery charger.
Procedure for charging exhaustively discharged batteries:

Batteries that have not been used for a long time discharge automatically.

A battery is exhaustively discharged if the open-circuit voltage has dropped below 11.6 V, see Open-circuit voltage measurement

In exhaustively discharged batteries, the battery acid (sulfuric acid and water mixture) consists of virtually only water, as the sulfuric 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. This results in reduced battery performance.

Exhaustively discharged batteries must be charged using a low charge current as follows:
- Set the charge current to maximum 10% of battery capacity, i.e. with a 95 Ah battery, the charge current is max. 9.5 A.
Charge the battery.