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      05-14-2009, 06:49 PM   #39
HP Autosport
BimmerPost Supporting Vendor

Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, Brembo, GIAC, Koni, Ohlins, Performance Friction, Quaife, Stoptech, Vorshlag

iTrader: (32)

Originally Posted by lucid View Post
These kinds of systems go into some kind of power save mode, but they are, by definition, still active, scanning for a signal. So yes, CA will draw a small amount of current. However, I have had my car sit for 2 weeks (with stock battery), and I had no problems cranking the car after I got back. So, I don't see how CA is able to draw enough current from the Braille battery over a couple of days or so to cause problems...
Take note that the Braille battery is about 1/3 the size of the stock battery, therefore less reserve capacity. Although the small amount of draw is insignificant for the stock battery, it may cause an issue with the low reserve capacity of the Braille.