Battery Tender - Official BMW
#1
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Join Date: Feb 2008
Location: Pikes Peak- Colorado
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My Ride: BMW 535xi
Model Year: 2008
Never opened brand new (this was a gift from my daughter). Incorporates the new BTP micro-chip technology to apply the optimum charge. Uses cigarette lighter plug to properly charge or maintain your battery. $45.00 plus shipping. Model # 82110026663
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Join Date: Jul 2010
Location: socal
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My Ride: 545I and a half dozen other rides
Easiest and safest way of getting a low amp charge to the battery, pretty much stupid proof unless the fuse is blown. I just never knew the connection was live when the key is off.
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