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Audi Q4 40 e-tron Battery Replacement Information

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About the Audi Q4 40 e-tron

The Audi Q4 40 e-Tron is a 5-passenger, fully battery electric vehicle (BEV) first introduced as a 2022 model. It is largely based on the VW ID.4 platform and is available with a traditional SUV roof or with a Sportback model offering slightly increased performance and range.

The Q4 40 e-Tron is available in three sibling models, the Q4 35 e-tron, Q4 45 e-tron, and Q4 50 e-tron.

Q4 35 e-tronQ4 40 e-tronQ4 45 e-tronQ4 50 e-tron
Battery Capacity52 kWh76.6 kWh76.6 kWh76.6 kWh
Drive-typeFront-Wheel Drive (FWD)Front-Wheel Drive (FWD)All-Wheel Drive (AWD)All-Wheel Drive (AWD)
Range177 miles
285 km
251 miles
405 km
240 miles
385 km
240 miles
385 km
Power125 kW
170 PS
150 kW
204 PS
195 kW
265 PS
220 kW
299 PS
Audi Q4 e-tron Models Compared

The interior of the Audi Q4 40 e-Tron makes extensive use of recycled plastics, further reducing the vehicle’s environmental footprint.

Audi Q4 40 e-tron Specifications

ModelQ4 40 e-tronQ4 40 e-tron Sportback
Horsepower201 hp
150 kW
204 PS
201 hp
150 kW
204 PS
Torque229 lb-ft
310 N-m
229 lb-ft
310 N-m
Battery82 kWh Lithium Ion (Li-ion)82 kWh Lithium Ion (Li-ion)
Electric Range180 – 370 miles
290 – 595 km
241 miles
388 km
Gasoline EngineNoneNone
Efficiency129 – 264 Wh/km125-251 Wh/km
GVWR5820 lbs
2640 kg
5787 lbs
2625 kg
0 to 62 mph8.5 seconds8.5 seconds
Top Speed99 mph
160 km/h
99 mph
160 km/h
Audi Q4 40 e-Tron Specs

Audi Q4 40 e-tron Batteries

Drive Battery | 12V Battery | Key Fob Battery

Drive Battery / Traction Battery

Drive Battery Specs

Battery TypeLithium Ion (Li-ion)
Battery Capacity82 kWh (nominal)
76.6 (usable)
Battery Voltage400V
Battery ManufacturerLG Chem
Audi Q4 40 e-tron Drive Battery Specs

Drive Battery FAQs

Where do I purchase a Audi Q4 40 e-tron replacement drive battery?

Parts.AudiUSA.com – The official Audi parts finder in the USA.

Audi Q4 e-tron Replacement Drive Battery

Audi Dealership – Likely the best place to find a replacement drive battery for the Audi Q4 40 e-tron is the dealer themselves.

Audi Dealer Locator

eBay – One of the best places to find gently used batteries for the Audi Q4 40 e-Tron is eBay. Cars that have been wrecked or written off as a total loss can still have good batteries.

Check eBay for Audi Q4 40 e-tron Drive Batteries

Where is the drive battery located in the Audi Q4 40 e-tron?

The drive battery in the Audi Q4 40 e-tron is located under the floor of the passenger compartment. It can be accessed from below the vehicle.

Drive Battery Charging

Audi Q4 40 e-tron Charge-Port Location

The charging port on the Audi Q4 40 e-tron is located just above the right rear wheel arch, between the taillight and the rear passenger door.

The components to plug in the Q4 40 e-tron can be found in the rear cargo area, under the floormat.

Audi Q4 40 e-tron Charge-Plug Type

The US Audi Q4 40 e-tron both use a J1772 type connector to charge their battery systems.

Type J1772 Connectors on Amazon

European variants will use a Type 2 (Mennekes – IEC 62196) style plug.

The fast-charge plug for the Audi Q4 35 e-tron is a Combined Charging System (CCS Combo 2) style plug.

Level 1 Charging – How long does the Audi Q4 40 e-tron take to charge on a 110v AC outlet?

As a level 1 home charging source, the Audi Q4 40 e-tron is capable of up to 80% total charge in approximately 39 hours 15 minutes.

Level 2 Charging – How long does the Audi Q4 40 e-tron take to charge on a 208-240v AC charger?

As a level 2 wired single-phase home-charging source, the Audi Q4 40 e-tron is capable of up to 80% charge in approximately 12 hours 15 minutes.

On a level 2 wired three-phase home-charging source, the Audi Q4 40 e-tron is capable of up to 80% charge in approximately 8 hours 15 minutes.

Level 3 Charging – How long does the Audi Q4 40 e-tron take to charge on a public DC fast charger?

On a level 3 400-900V DC charging source, the Audi Q4 40 e-tron is capable of charging from 10% to 80% in approximately 33-71 minutes, depending on the charger.


12V Battery

Audi Q4 40 e-Tron 12V Battery Location

The Audi Q4 e-Tron’s 12V battery is located beneath the front cowl, between the “frunk” and windshield. Audi recommends that only qualified technicians change the 12V battery.

Audi Q4 40 e-Tron 12V Battery Size

The Audi Q4 40 e-Tron has an enhanced flooded lead-acid 12v battery to power many of the low-voltage systems in the car, such as the lights, dashboard, and battery control module.

Audi Q4 40 e-Tron 12V Battery Terminal Maintenance

Maintaining your Audi Q4 e-Tron 12V battery terminals is essential to ensuring a positive electrical contact. We recommend cleaning terminals and using a terminal protectant spray to prevent corrosion on your battery terminals.

CRC Battery Cleaner w/ Acid Detector will clean your battery terminals and surface, neutralizing acids and detecting leaks.

CRC Battery Terminal Protector Spray is designed to protect battery terminals from corrosion, a leading cause of hard starting and battery failure.

Audi Q4 40 e-Tron 12V Battery Testing, Maintenance and Repair

Battery testers are an inexpensive way to save yourself time in repairing your Audi Q4 40 e-Tron. A healthy 12V battery will read between 12.6 and 12.8 volts when tested. Anything lower, and you may want to consider replacing your batteries or checking the battery fluid levels.

12V Battery Testers on Amazon

How to charge the Audi Q4 e-Tron 12V battery

You can charge the Audi Q4 40 e-Tron with a normal 12V charger. If you remove the under-hood fuse/relay box cover you’ll notice posts that are tied together electrically, to which you can clamp the positive (+) cable. You can then ground to any convenient place nearby the box.

Audi Q4 40 e-Tron 12V Battery Chargers
Battery ChargerWhere to Purchase?
NOCO GENIUS 10 (12V & 6V)
10A Smart Car Battery Charger
Amazon
Battery Tender Junior 12V
750 mA Charger and Maintainer
Amazon
OptiMATE Lithium 4s 0.8A, TM-471
Battery Saving Charger & Maintainer
Amazon
Audi Q4 e-Tron 12V Battery Chargers

Jump starting a Audi Q4 40 e-Tron

There are convenient terminals to connect the positive and negative battery cables, which will be marked accordingly. Hook the positive up to the vehicle with the dead battery first, then to the vehicle you are jumping from.

Something to keep in mind: Traditional jumper cables are typically designed to handle the high amperage load of a starter motor. However, in the case of a hybrid vehicle, you are only attempting to power the 12-volt bus and therefore do not require such heavy-duty cables. It is recommended to use cables with a gauge size no larger than 14 – small motorcycle battery clamps should be sufficient.

Shop 14 Gauge Jumper Wires on Amazon


Audi Q4 40 e-tron Remote Key Fob Battery

The Audi Q4 40 e-Tron key fob uses a CR2032 3V lithium battery.

Find CR2032 3V Lithium Batteries on Amazon

How to replace the key fob in a Audi Q4 40 e-tron

Audi Q4 40 e-Tron Drivetrain

The Audi Q4 40 e-tron is built on Volkswagen’s MEB platform.

Animation: Audi Q4 e-tron – Modular Electric Battery Platform

In the single-motor Audi Q4 40 e-tron, an 82 kWh battery powers a single electric motor, which then sends power to the road via the rear wheels.

All Q4 models feature a 5-link independent rear suspension.

Electric Motor

Electric Motor Peak Output201 hp
150 kW
204 PS
Electric Motor Torque229 lb-ft
310 N-m
Audi Q4 e-Tron Electric Motor Performance Specifications

Gasoline Engine

The Audi Q4 40 e-tron does not have a gasoline engine.

Transmission

The Audi Q4 40 e-tron uses a single-speed transmission with a gear ratio of 13:1.


Join a Audi Q4 40 e-Tron Community

e-tronForum.com – A forum dedicated to Audi e-tron enthusiasts.

AudiWorld.com: Q4 e-tron – Discussion forums for the electric Audi Q4 e-tron SUV.

Reddit.com/r/Audi – A Reddit community for Audi enthusiasts and those who love four rings.

Reddit.com/r/ElectricVehicles – This is the Reddit community for EV owners and enthusiasts. Discuss evolving technology, new entrants, charging infrastructure, government policy, and the ins and outs of EV ownership right here.


Audi Q4 40 e-Tron Reviews

2022 Audi Q4 E-tron | Review & Road Test
2023 Audi Q4 40 e-tron Test Drive & Review