Something is causing my battery to drain

2004 RENAULT SCENIC
30,000 MILES
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something is causing my battery to drain ive had alternator checked it was ok. some one has said it could be water in the fuse box does this have to go to main dealers to be repaired.
Jan 12, 2013 at 8:53 PM
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SQM
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Hello,

Sounds like you have excessive parasitic draw (current drain) on the battery.
All electrical circuits with a battery will have some amount of parasitic draw, however it can become excessive due to any number of faulty components. Like it could be a glove box light staying on or a malfunctioning window switch etc.

In order to find out what is causing the draw you will have to use a multimeter and check the current draw on the battery, as you remove fuses for different circuits.
This vehicle should have less than 25 milliamps of parasitic draw.
Take a look at this video, it shows exactly what to do:

https://youtu.be/z5F7WpgjaRs

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

Please let me know if you have any questions.
Thank you.
Jan 21, 2022 at 1:25 PM