Description
Ensure your BMW remote works flawlessly with this genuine OEM key fob battery, part number 66126912985. This battery replaces the internal coin cell in BMW and MINI key remotes with keyless entry. The design is a standard CR2032 3 V lithium cell, specified by BMW for reliable performance. BMW of Stratham Parts+2Schmiedmann+2
Key Features:
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✅ OEM Part Number: 66126912985 (also referenced as 66-12-6-912-985) Schmiedmann+1
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Battery Type: CR2032 / 3 Volt lithium cell Amazon+1
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Compatibility: Works in BMW & MINI key remotes with keyless entry systems. For example, OEM listings show fitment for many BMW models. Schmiedmann+1
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Condition: Brand new, genuine BMW accessory battery
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Installation: Easy replacement—open key fob, remove old battery, insert new CR2032 cell matching polarity, reassemble.
Why it’s important:
Replacing this battery when your key fob starts causing weak signals, inconsistent unlocking, or keyless start issues helps maintain remote functionality and avoids being locked out or stranded. Using the correct part number ensures compatibility and retains the OEM standard.

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