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Old May 7, 2009 | 12:17 PM
  #7  
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tabetha
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Joined: Jul 2006
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From: uk
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It's the battery, if it were discharging through the alt due to defective diodes it would not be anywhere near as quick to do so as this.
I would clean up all connections anyway, as the batteries age the plates break up and the broken bits fall to the bottom causing a permanent short in that cell, years ago some were washed out then refilled and got a bit more life out of them, but most are sealed these days.
I always use Varta Blue myself, expensive but get what you pay for.
carbatteryshop.co.uk is a good site
tabetha
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