Used Mercedes EQB battery packs

250+: the 70.5 kWh pack. 300 4MATIC and 350 4MATIC: the 66.5 kWh pack. For a US-market car or one built from late 2024, check the label.

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.

Yes, for packs with Farasis Energy cells in cars built up to mid-2024, which include the 70.5 kWh pack in the EQA 250+ and EQB 250+. Mercedes first updated the battery software and limited charging to 80% (US recall 25V-050, February 2025). The final fix is a new battery, fitted free of charge (US recall 26V-073, February 2026). In the US the recall also covers 2022 to 2024 EQB 300 4MATIC and 350 4MATIC cars. Ask the seller for the car's VIN and whether the battery was replaced.

Mercedes EQB packs with a fixed price on ReBattery are listed from £4,792 (66.5 kWh) to £7,708 (66.5 kWh) right now. The price depends on condition and measured health, and some sellers take offers instead. Fitting by an EV garage costs extra.

You have 7–14 business days to inspect it. Raise it with evidence and the seller is not paid until it is resolved.