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      05-12-2012, 07:51 PM   #1
quadpipes
Second Lieutenant
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Drives: '11 E92 M3 IB/Beige,M-DCT,ZCP
Join Date: May 2009
Location: Missippi USofA

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Battery Tender Charge Time

I have read all the posts on the Deltran/BMW Battery Tender and have not found generally how long it takes the Deltran/BMW Battery Tender to transition from 'Charge' mode to 'Maintenance' mode. I just started using mine since I anticipate leaving my car idle for 3 weeks. I am trying it out today. It has been charging for about 6 hours now and I would have expected it to have already transitioned. Anyone with experience here that could chime in would be appreciated. It is currently driven regularly for several miles so the battery should not be depleted. Thanks.