ID.4 2021 ➤
Electrical system - Edition 02.2021
2.6
Charging battery A
WARNING
Escaping oxyhydrogen gas when charging and due to subse‐
quent degassing.
Danger of explosion
– Avoid sparking.
– Avoid short circuits.
– No open flames.
– No smoking.
– No open light.
– Dissipate any static charge by briefly touching door striker
pin.
– Only work on batteries in well ventilated rooms.
– Make sure that the bleeder hole is on the correct side.
NOTICE
Risk of damage to battery -A-
– Charge battery -A-. The no-load voltage must not be less
than 11.6 V.
The battery monitor control unit -J367- will henceforth be refer‐
red to as “battery monitor control unit”.
The battery -A- will henceforth be referred to as “battery”.
A battery is designated totally discharged when the no-load
voltage is less than 11.6 V.
•
The battery must have a temperature of at least 10 °C.
– Switch off ignition and electrical consumers.
– Keep vehicle key and other entry and start authorisation
equipment (e.g. smartphone) outside vehicle.
WARNING
Danger of explosion when checking and charging battery or
when using it for jump starting.
– Do not test or charge batteries whose “ALI (Acid Level In‐
dicator)” is colourless/light yellow. Do not slave/jump start
the vehicle.
– Switch on battery charger.
– Select charging mode.
– Connect red charger terminal “+” to positive battery terminal.
– Connect black charger terminal “-” to vehicle earth.
Ending battery charging process
– Switch off battery charger.
– Disconnect black terminal “-” of battery charger.
– Disconnect red terminal “+” of battery charger.
16
Rep. gr.27 - Starter, current supply, CCS
ID.4 2021 ➤
Electrical system - Edition 02.2021
2.7
Removing and installing earth wire with
battery monitor control unit [J367]
The battery monitor control unit -J367- will henceforth be refer‐
red to as “battery monitor control unit”.
Removing
– Disconnect battery ⇒ Rep. gr. 27; Disconnecting and con‐
necting battery.
– Disconnect electrical connector -2- from battery monitor con‐
trol unit -3-.
– Unscrew nut for jump start box negative -1-.
– Remove earth wire with battery monitor control unit -2-.
Installing
Install in reverse order of removal, observing the following:
– ⇒ Rep. gr. 27; Adapt battery monitor control unit [J367].
Tightening torques
♦ ⇒ Rep. gr. 27; Assembly overview – battery
2.8
Adapting battery monitor control unit
[J367]
The battery monitor control unit -J367- will henceforth be refer‐
red to as “battery monitor control unit”.
2. Battery
17
2024 VW ID.4 Owner's Manual
