picture of the Mercedes G580 EQ

Mercedes G 580 EQ Battery

picture of the Mercedes G580 EQ

Mercedes G 580 EQ Battery is as expected rather large at 122kWh total and 116kWh usable.

Metrics

  • Energy Density = 167.8 Wh/kg
  • Power Density = 660W10s/kg

This post has been built based on the support and sponsorship from: Thermo Fisher Scientific, Eatron Technologies, About:Energy and Quarto Technical Services.

  • Usable Energy = 116 kWh (Total = 121.968 kWh)
  • Usable SoC Window = 95.1%
  • Nominal Voltage = 396 V
  • Nominal Capacity = 308 Ah
  • Power ~ 480 kW10s
  • Regen Power = 217 kW
  • Charging
    • Peak power = 200 kW
    • 10-80% SoC = 32 minutes
  • Configuration
    • 108s 2p
    • #cells = 216



Pack Mass = 726.9 kg

Estimated from EPA application filed by Mercedes and should be noted that this will not include the mass of the undertray.

Module

  • Number of modules = 12
  • Numbers of cells/module = 18
  • Configuration = 9s 2p

Cell

  • Cell manufacturer = CATL
  • Chemistry = NMC811
  • Nominal capacity = 154 Ah
  • Nominal voltage = 3.67 V
  • Nominal energy = 564.7 Wh

Structure

The battery is integrated into the ladder frame made from steel up to four millimetres thick. This ensures a low centre of gravity and makes the entire vehicle significantly more rigid. To protect it from water and dirt intrusion, the battery is housed in a torsion-resistant casing.

Reference 1

Mercedes G580 EQ undertray

The underbody protection on the all-new electric G-Class is made from an intelligent material mix that includes carbon. It increases rigidity compared to alternatives made from steel or aluminium. It also ensures long-lasting corrosion protection and saves weight. The underbody panel is 26 millimetres thick, weighs 57.6 kilograms and is attached to the ladder frame with more than 50 steel screws. A comparable steel component is around three times heavier. A one-millimetre layer of stone-chip protection is applied to the underside.

HV

Mercedes-Benz has developed a multi-stage high-voltage protection concept for its electric vehicles to prevent electric shocks and high-energy short circuits. It comprises eight essential elements for the safety of the battery and all components with a voltage level of more than 60 volts. This includes, for example, a selfmonitoring high-voltage system that switches off automatically in the event of a serious collision.

Once we find the CATL specification sheet for this cell and images of the battery pack assembly we will enhance this post. Thanks to all for watching and supporting.

References

  1. The GELÄNDEWAGEN. Electrified: All-new Mercedes-Benz G 580 with EQ Technology possesses uncompromising off-road capabilities, Mercedes Media
  2. Mercedes-Benz Brings Electric Brawn to G-Class With G580, WardsAuto
  3. Application for Certification – Part 1 2025 Model Year, EPA
  4. Mercedes-EQ G 580 EQ, EVKX.net

See also: Benchmarking Battery Packs

Leave a Comment