Battery

[Haz]

The original BMW lead–acid battery is 26.1kg (57.5lbs) since it has high spec 12V 90Ah.
You may swap it to a lithium one like the LFPO battery, 12V 80Ah is only 9.5kg (20.9lbs).

(Photo credit: CS)

What if my car is tuned does it affect it? Do i have to reset my tune back to stock then add the new battery

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[NewSupraOwner]

In case anyone is interested, got help from this forum in another post on how to properly do the swap. Here's the thread:

https://www.supramkv.com/threads/battery-replacement-programming.14298/

Appreciate this post too -- helped convince me of the rationale for why a battery would need to be registered (proper voltage profile to optimize power draw and prolong battery life).

Great community here -- thanks folks!