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Q: Why my car won't start as soon as the weather gets cool. New battery. on 2010 Hyundai Elantra

The dealership cannot find anything wrong, the issue continues and keep having to jump start the car. What can be wrong?
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Sometimes the engine turns a bit but not enough to start it. Most of the time the battery is completely dead and I can't even open the doors with the remote and have to use the key.
This seems to happen only in cold weather, no issues during summer months.
I got a new battery put in. The dealership cannot find anything wrong with the car. The car is only 3 years old this should not be happening?
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Did you install any accessories that might be drawing power from the battery you might have forgotten about? Common sense tells me there must be a draw pulling the battery down to that level. If the starter was the only issue, I would think the cold cranking amp rating on the battery is less than needed for cold weather. Have the electrical system tested for a parasitic draw on the battery. Something is obviously draining your battery. Any questions, just ask.
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