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Hi -
Here is a big clue: "Yesterday ran smooth as a top, went to the store, dead battery when I tried to leave."
Something is draining the battery, or else it isn't charging in a way that the "Battery" light isn't working correctly. Often an open circuit in the exciter wire (thin red one on back of alternator).
Leaving the battery terminals connected during an overnight trickle charge has never caused a problem for me.
I have found that when the battery charge is way low, things seem to work but the starter won't crank - or even click. My usual check is to (1) mutter OH! S___T a few times while sitting there.
Then (2) with door open, and dome light on, try the start again while watching the light. If the light goes way down dim, almost out - the battery is too pooped to pop. Charge it up again with the trickler.
BTW - do not try to jump start a car with a dead battery and then use the car to charge it. Alternators are designed to keep the battery full, sort of a topping off deal. Putting it under a big load, like charging from dead, can damage the alternator. Good that you have a charger. Mine has been a good investment.
With the battery charged it's easier to find the "leak". There's a way descdibed in the FAQ, I think - has to do with pulling fuses one at a time.
Good Luck,
Bob
:>)
PS - Are you getting parts from VPI? Old Katy Road just West of the tollway.
713-722-0505. John knows Volvos. Has a Volvo 240T Limo, among others.
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