Mercedes EQA and EQB 66.5 kWh battery packs

9 packs for sale now. Compare health and price per kWh, then buy with payment held until the pack arrives.

In the EQA 250, EQA 300 4MATIC and EQA 350 4MATIC, and the EQB 300 4MATIC and 350 4MATIC outside the US: 66.5 kWh usable.

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66.5 kWh EQA packs for sale (9)

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Reference

Mercedes EQA 66.5 kWh battery facts

The Mercedes EQA and EQB 66.5 kWh battery is the pack in the EQA 250 and the all-wheel-drive 300 4MATIC and 350 4MATIC from 2021: 66.5 kWh usable, with no gross figure published. A US-market EQB 300 or 350 4MATIC is not confirmed to have it.

Capacity
66.5 kWh usable
Gross
Not published by Mercedes
Cars
EQA 250, EQA 300 4MATIC and EQA 350 4MATIC; EQB 300 4MATIC and 350 4MATIC outside the US
Built
From 2021
Shared
The same pack in the EQA and EQB

Note: Sources disagree on later cars: electrive says the 2023 facelift kept 66.5 kWh in every version but the 250+, while ADAC lists 70.5 kWh for some 350 4MATIC cars from late 2024 and 300 4MATIC cars from 2025. Check the label.

Note: Sources disagree on the cell maker of this pack, which may vary by market and build date, so we do not name one.

Built into

  • Mercedes EQA 250
  • Mercedes EQA 300 4MATIC and 350 4MATIC
  • Mercedes EQB 300 4MATIC and 350 4MATIC (outside the US; US cars not confirmed)

Documents

Safety data sheet and UN38.3 test summary for this pack, on request.

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Each fact is confirmed by two independent sources: Mercedes-Benz press material and recall filings (one source), plus ADAC, Autocar, Auto Express, electrive and NHTSA. Facts we could not confirm twice are left out. Checked . Sources

Questions

Buying a used EQA 66.5 kWh pack

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Yes. Both use the 66.5 kWh pack in the all-wheel-drive 300 4MATIC and 350 4MATIC (and the EQA 250), and the 70.5 kWh pack in the front-wheel-drive 250+. A US-market EQB 300 or 350 4MATIC is not confirmed to have the 66.5 kWh pack; check the label.