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Overnight the battery drains out and car will not start in the Morning

Tiny
EREEFEKE
  • MEMBER
  • 2012 TOYOTA LANDCRUISER
  • V8
  • TURBO
  • 4WD
  • AUTOMATIC
  • 35,599 MILES
Early in the morning the battery always runs down and the car cannot start. I have to take a fresh battery to start the car. Once the car starts and the old battery is reinstalled, it starts throughout the day. But the next morning it runs down again and we have to do the same process.
I bought a new battery thinking it is a battery problem but once I don't start the car for 3 days the battery runs down again. What is the solution?
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Sunday, April 25th, 2021 AT 7:32 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
Hi,

You must have a parasitic electrical draw that is causing a drain on the battery at all times. The easiest thing to do is to check the voltage draw at the battery and then remove one fuse at a time until the draw stops. Then you will know the circuit.

Regardless, take a look through this link and see if it helps. It discusses the most common causes of this type of issue.

https://www.2carpros.com/articles/car-battery-dead-overnight

Let me know if that helps or if you have other questions.

Take care,

Joe
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Sunday, April 25th, 2021 AT 9:15 PM

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