Mercedes-Benz

Mercedes-Benz EQB Pack (70.5 kWh)

Lithium-ion (cathode not published) cells from Farasis Energy (Ganzhou) · 70.5 kWh total (70.5 kWh usable) · used in 1 model variant.

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Pack reference

Lithium-ion (cathode not published) · Farasis Energy (Ganzhou) · Under-floor pack, 321 volts as filed with EPA; module count not published for US cars

About the pack

Capacity

70.5 kWh

usable · 70.5 total

Fast charge

100 kW

peak · about 32 min to 80%

Warranty floor

—

see OEM warranty book

Pack overview

ChemistryLithium-ion (cathode not published)

Cell supplierFarasis Energy (Ganzhou)

Cell formatNot published

Voltage (nominal)321 V

CoolingLiquid

ArchitectureUnder-floor pack, 321 volts as filed with EPA; module count not published for US cars

Warranty 8 yr / 100k mi

Known issues

High

Four NHTSA recalls cover the EQB's high-voltage battery, and NHTSA flags all four park-outside. 26V-073 (February 2026) covers about 11,900 cars, the 2023-2024 EQB 250+ and 2022-2024 EQB 300 and 350, and replaces the high-voltage battery. Until then owners are told to park outside and charge to no more than 80%. It supersedes two earlier software recalls, 25V-050 and 25V-894, whose remedies Mercedes reported as failed.

NHTSA recall

High

NHTSA 25V-487 (July 2025) covers 660 EQB 300 and 350 cars from 2022-2023. The screw connection of a bus bar in the high-voltage battery may not meet specification, which can cause a sudden loss of propulsion. Owners are told to park outside, and dealers inspect and replace the battery as necessary, free of charge.

NHTSA recall

Low

Mercedes-Benz USA lists a usable battery capacity of 70.5 kWh for the EQB 250+, 300 and 350, with DC charging at up to 100 kW and a 9.6 kW on-board charger.

Manufacturer

Low

The recall filings name Farasis Energy (Ganzhou) as the battery supplier. Mercedes told NHTSA the fault was corrected in production from July 31, 2024.

NHTSA recall

Low

Mercedes-Benz USA covers the EQB battery for 8 years / 100,000 miles, shorter than the 10 years / 155,000 miles on the EQE and EQS. The capacity floor is 133 Ah or 160 Ah depending on the battery, and the US warranty booklet gives no percentage.

OEM warranty

How this pack ages (industry context)

Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).

OEM warranty floor on this pack: 8 yr / 100k mi.

Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.

Vehicles using this pack

Mercedes-Benz EQB

2022-2025 · EQB 250+ / 300 / 350

205-251 miEPA range

87-107MPGe

Full reliability page →

Battery-Related NHTSA Recalls

Recalls affecting battery, charging, electric propulsion, or thermal-event systems on vehicles using this pack, as of the last complaint-data run. Each campaign names the model generation it was filed against; the summary gives the model years covered.

26V073000 Feb 6, 2026 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 EQB 250+, 2022-2024 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Filed against: Mercedes-Benz EQB 2022-2025

25V894000 Dec 19, 2025 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 EQB 250, 2022-2023 EQB 300 4MATIC, and EQB 350 4MATIC vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Filed against: Mercedes-Benz EQB 2022-2025

25V487000 Jul 25, 2025 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 EQB 350 4MATIC, and EQB 300 4MATIC vehicles. The bus bar in the high voltage battery may be secured with incorrect screws, which can cause the system to have a sudden loss of drive power without warning.

Consequence: A loss of drive power increases the risk of a crash.

Filed against: Mercedes-Benz EQB 2022-2025

25V050000 Feb 7, 2025 ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2025 EQB 250, EQB 300 4MATIC, and EQB 350 4MATIC electric vehicles. The high voltage battery may fail internally and lead to a vehicle fire while parked or driving.

Consequence: A vehicle fire while parked or driving can increase the risk of injury.

Filed against: Mercedes-Benz EQB 2022-2025

For TWD editorial coverage of major recall campaigns, see /recalls/.

Pack family

Mercedes-Benz EQB Pack (70.5 kWh) is part of the mercedes-eq family. Related packs:

Mercedes-Benz EQS Pack (107.8 kWh) · NCM 622 / NCM 811 · 107.8 kWh
Mercedes-Benz EQE Pack (90.6 kWh) · NCM 811 · 90.6 kWh
Mercedes-Benz EQS 118 kWh (2025-2026 sedan and SUV) · Lithium-ion (NCM) · 122 kWh

Frequently Asked Questions

What chemistry is the Mercedes-Benz EQB Pack (70.5 kWh)?

The Mercedes-Benz EQB Pack (70.5 kWh) uses Lithium-ion (cathode not published) chemistry. Cells are supplied by Farasis Energy (Ganzhou). Cell format has not been disclosed. Pack architecture: Under-floor pack, 321 volts as filed with EPA; module count not published for US cars.

What is the warranty on this pack?

8 years or 100,000 miles. Specific terms vary by year and trim; check the manufacturer's warranty booklet for the exact vehicle.

How much does this pack degrade over time?

Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). Public per-pack degradation curves are not available for most models. The Mercedes-Benz EQB Pack (70.5 kWh) battery warranty runs 8 years / 100,000 miles, which is the OEM-guaranteed minimum within that period. Individual results vary with climate, charging habits, and DC fast-charging frequency.

Which vehicles use the Mercedes-Benz EQB Pack (70.5 kWh)?

Mercedes-Benz EQB 2022-2025 (EQB 250+ / 300 / 350).