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Greetings. My first posting. I own a DB9 2006 reg. 43000 miles on the clock. For the last 9 months or so it has developed a battery problem. The engine won't start (but the electrics come on) if left parked for 6 or 7 days. I have had the battery checked professionally, and it is ion good condition. My mechanic could not find anything that might be "draining" it. Can anyone please suggest any remedial treatment? Many thanks, Stephen
 

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Greetings. My first posting. I own a DB9 2006 reg. 43000 miles on the clock. For the last 9 months or so it has developed a battery problem. The engine won't start (but the electrics come on) if left parked for 6 or 7 days. I have had the battery checked professionally, and it is ion good condition. My mechanic could not find anything that might be "draining" it. Can anyone please suggest any remedial treatment? Many thanks, Stephen
 

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I own an '06 DB9 w a similar problem. The power amp in the trunk has a fan which was constantly running & the battery tender ultimately could not maintain a lasting charge. Unfortunately I haven't found a remedy but disconnected the amp so the NEW battery is staying charged. The amp is a monster - many wires! Since i'm not a tech or mechanic the process is slow but I wanted to give you a lead. I know the felling of frustration/desperation. Hope this helps, will update when resolved.
 
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