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      01-13-2020, 06:52 AM   #5
RagtagXMASTER
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Drives: 2013 M6
Join Date: Jul 2018
Location: Boston MA

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Quote:
Originally Posted by Whipple View Post
I just changed mine a few months ago but I used the factory battery from BMW parts local.The battery was 250 bucks and I registered it with the icarly app,

This was my problem was the exhaust controller for the Meistershaft exhaust ,I initially had it on the wrong fuse giving me battery drain, how I figured it out was when I installed the new battery I had to hook up the ground wire for the controller back on the bolt I used I noticed a spark when connecting, right there told me there was a load on the battery when the car was off, so Im pretty sure I swapped a perfectly good battery,You should relocate your fuse to a key switch on fuse with a piggy back fuse in the fuse block in the rear
The odyssey from fcpeuro was $240 with a lifetime replacement. I had a very similar problem. I built a switch box for my car that lets me turn on or off without really disconnecting anything. So now when i park it i just flip the switch and its cut all power to it.
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