Product description
BMW Lithium Battery repair for M3/M4/M8 models
Our expert restoration service for high-performance BMW M models where the factory lithium battery has been left uncharged for long periods, leading to deep discharge and complete loss of output.
These advanced 12V 70Ah lithium-ion batteries, used in M3, M4, and M8 vehicles, include a sophisticated BMS (Battery Management System) that shuts down protection when voltage drops too low. This prevents standard chargers from working and triggers "battery fault" warnings or no-start conditions.
Our professional repair restores full functionality—delivering OEM-level performance at a fraction of the cost.
Common Issues We Fix:
- Battery shows 0 volts or very low reading
- No acceptance of charge
- Vehicle no-start
- Deep discharge after extended storage, parking, or parasitic drain
Supported Models & Battery Part Numbers:
- BMW M3 (F80) 2014-2018 – 61218092859
- BMW M4 (F82) 2014-2020 – 61218092859
- BMW M4 (F83) 2014-2020 – 61218092859
- BMW M8 (F91) 2019-2023 – 61218092859
- BMW M8 (F92) 2019-2023 – 61218092859
- BMW M8 (F93) 2019-2023 – 61218092859
This is a mail-in or drop-off restoration service: Disconnect and remove your battery, send it to us (or local drop-off), and get it back fully repaired, tested, and ready to install.