Audi Q4 e-tron battery
Audi Q4 e-tron have two different variants of the battery
The drive portfolio of the two compact electric models lives up to the expectations of very different groups of customers – from the urban commuter to the long-distance driver. It includes two battery variants and three drive variants. The compact battery for the Q4 35 e-tron has a net energy content of 52 kWh (55 kWh gross), while the figures for the large battery in the Q4 40 e-tron and Q4 50 e-tron quattro are 77 (82) kWh.
Battery cells
The battery cells in the Audi Q4 models are produced by LG Chem
| Spec | value |
|---|---|
| Manufacturer | LG Chem |
| Model | LGX E78 |
| Voltage | 3,65 V |
| Capacity | 78 Ah |
| Weight | 1.073 g |
| Gravimetric energy density | 265 Wh/kg |
| Chemistry | NCM 712 |
Battery Q4 35
The Q4 35 e-tron battery consist of 8 battery modules with 12 cells in each module.
| Spec | Value |
|---|---|
| Gross capacity | 55 kWh |
| Usable capacity | 52 kWh (94 %) |
| Modules | 8 |
| Cells | 192 |
| Cell pr modules | 24 |
| Cell configuration | 96s2p |
| Voltage | 350 V |
| Total cell weight | 206 kg |
| TMS | active liquid cooling |
| Pack weight | 344kg |
Q4 35 e-tron battery
Battery Q4 40 e-tron and Q4 50 e-tron
| Spec | Value |
|---|---|
| Gross capacity | 82 kWh |
| Usable capacity | 77 kWh (94 %) |
| Modules | 12 |
| Cells | 288 |
| Cell pr modules | 24 |
| Cell configuration | 96s3p |
| Voltage | 350 V |
| Total cell weight | 309 kg |
| TMS | active liquid cooling |
| Pack weight | 493kg |
| Pack density wH/kg | 166 |
Q4 40 e-tron / Q4 50 e-tron battery
Thermal management
The thermal management system aims to get the battery up to the ideal temperature range of around 30 degrees Celsius quickly after it is started and to keep it there until the end of the journey. This ensures that its full power – and therefore the power of the entire drive system – is available after a short time even in extremely cold conditions. Thanks to the stable thermal conditions, the driver can also call on it repeatedly or charge the battery at an HPC charging terminal with high output. The sophisticated thermal management system also gives the battery a long life cycle – Audi guarantees that it will still have at least 70 percent capacity after eight years of operation or after 160,000 kilometers.
Thermal management Audi Q4 e-tron
Cooling of the high-voltage battery via the chiller
Detail walkthrough of battery
Below you see Sandy Munro go in details about the Q4 battery.
Charging performance Audi Q4 e-tron
The first generation of Audi Q4 e-tron had a max charging speed of 100KW for the Q4 e-tron 35 and 125KW for the Audi Q4 e-tron 40/45/50 with the charging curve below.
Charging curve Q4 e-tron optimal conditions
In March 2022, Audi revealed that they upgraded the charging speed and the charging curve for the Audi Q4 e-tron 40/45 and 50.
All these cars will now charge up to 135 kW of power. As a result, the ideal 5 to 80 percent charge time is reduced for the Q4 40 e-tron and the Q4 Sportback 40 e-tron to 29 minutes, for the Q4 45 e-tron quattro and the Q4 50 e-tron quattro and Q4 Sportback 50 e-tron quattro models to 36 minutes.
Audi Q4 e-tron charging at Ionity
It is currently not known if the existing cars will get an upgrade to the new charging curve.
Battery lifetime
Audi guarantees that it will still have at least 70 percent capacity after eight years of operation or after 160,000 kilometers.
Audi all-electric models
Click on link for direct access to the different model info for Audi all-electric models