Battery drains overnight?

Tiny
STAN1204
  • MEMBER
  • 2004 MERCEDES BENZ S430
  • 240,000 MILES
New battery, if sits overnight the battery will drain and have to get a boost for the engine to start.
Monday, February 27th, 2023 AT 2:42 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
Hi,

A drained battery overnight can be the result of several different things. For example, a short, a glove box lamp stuck on, and so on.

Here is what I need you to do. Follow the directions in this link. When I have a vehicle like this, if nothing is obvious, I use a voltmeter to test for a specific circuit drawing too much power. When you look at the link, it is one of the last things listed.

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

Let me know if this helps.

Take care,

Joe

SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, February 27th, 2023 AT 8:19 PM

Please login or register to post a reply.

Related Battery Drain Content

How to Test for a Battery Drain-Draw
VIDEO
How to Test for a Battery Drain-Draw
Instructional repair video
Battery Drain Repair
GUIDE
Battery Drain Repair
We are a team of ASE certified mechanics who have created this battery draw or dead overnight guide to help you save money by walking you through what to look for first. A...

Sponsored links