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Mercedes-Benz EQB UK brochure effective September 2024, EQB 300 4MATIC, 66.5 kWh battery pack

Mercedes-Benz EQB

UK brochure effective September 2024, EQB 300 4MATIC, 66.5 kWh

Pack size
66.5 kWh
Capacity
Not confirmed
Chemistry
lithium-ion (subtype not in the brochure)

Technical specifications

Electrical and control

Nominal voltage400 V
Operating range280–425 V*
ProtocolDrive-CAN (500 kbps), Mercedes-Benz EVA/MFA2 BMS*.
Home use (V2H)Pilot (Mercedes bidirectional pilot / Battery-Emulator)*
Coolingliquid (coolant plate under pack)
Battery-Emulator supportTesting ongoing · GitHub
Built-in contactorsYes (source)

Physical

DimensionsNot confirmed
WeightNot confirmed
Cell configurationNot confirmed
ConnectorCCS2
ConnectorsCCS-2. 11 kW AC, 100 kW DC.

Pricing

Usedfrom £5,755

* Data sourced from dalathegreat/Battery-Emulator firmware driver specifications and the Battery-Emulator Wiki.

How it works

Same brochure description as the 70.5 kWh EQB 250+. Four-wheel-drive variant, smaller stated capacity.

Notes

Same UK brochure: EQB 300 4MATIC battery capacity 66.5 kWh, operating voltage 400 V, same chargers and CCS-2. Subtype, cell count, cooling, pack mass and dimensions not in the table. US recall 26V073 also names EQB 350 4MATIC; that variant's kWh was not in this brochure, so it has no row. Used bulk price not confirmed.

Red flag

NHTSA 26V073 supersedes 25V050 and 25V894, whose software remedy Mercedes later judged not fully effective. Certain US 2022-2024 EQB 250+, EQB 300 4MATIC and EQB 350 4MATIC, 11895 vehicles, built 13 Dec 2021 to 9 May 2024. Farasis cells. An internal short at high state of charge might lead to a fire, with no warning if parked. Until the pack is replaced: charge to 80% at most and park outside. The filing says a supplier change from 31 July 2024 stops the defect on later production. A September 2024 UK brochure date does not prove a given car is outside that population. The US population includes EQB 300 4MATIC (6513 of the 11895 vehicles).

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