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      01-18-2014, 02:23 AM   #36
Chowster's Avatar

Drives: 2011 E90 M3
Join Date: Aug 2010
Location: Surrey, BC, Canada

iTrader: (2)

Originally Posted by Rudeman View Post
Just plug it in, and it goes into a fully automatic mode, sensing how much charge is required.

I just topped my battery off again overnight. Started at ~1.7amps, then after a few minutes, I heard the fan on the charger going, and it was putting in 3.5amps.

This morning, it was reading FUL. You can guess what that means. Like I said, I had the same problem, and charging it up every 4 or 5 months keeps it topped off and gives me peace of mind to run seat heaters, defoggers and to use the rest mode when the car isn't running.
Rudeman. Awesome tip. I had the same issues with increase battery discharge and low battery levels. I picked up the exact Motomaster unit you specified for 1/2 price, plugged it in, and voila, all my errors disappeared! Thanks so much!
2011.5 E90 Dinan M3, SS II, M-DCT, EDC, M Drive. 20" MORR VS8.2 wheels
Performance Mods: Dinan St.1 suspension, exhaust, intake; TTPs; BPM St.II, DCT, servo tunes
Cosmetic Mods: OEM CF splitters, mirrors, center console, spoiler; Arkym CF diffuser; LUX; tint