Q: why dose my battery keep dieding on 2005 Buick Terraza

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Ok i have a new battery and everywhere i take say the can't find nothing wrong but if i don't start it the same time everyday it will not start i love my bucik but i need to know going on with it like something make it not start help please
(2) Answers
You probably have a bad diode in the Alternator. The alternator will charge and test ok but when the car is turned off the diode will cause a draw on the battery.

The fix is to replace the alternator.
I'm sure that a good shop would be able to find out what's discharging the battery. You need to find an auto electrical shop or an independent GM specialist and give them a chance to fix it.
If you have aftermarket equipment like a sound system or alarm system, disconnect it to see if that's the trouble. Or find an electrical shop or GM specialist.
If you want to find a specialist, here's a directory link for you: