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      01-03-2013, 05:44 PM   #7
NorthernDancer
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Drives: 325iX & 128
Join Date: Apr 2011
Location: Ottawa On Canada

iTrader: (2)

battery charger

buy a high tech 1 amp or 1.5 amp battery charger/maintainer (Battery Tender, CTEK come to mind) and put it on overnight couple of times a month and ESPECIALLY if you don't drive the car for a week or more.