Hello. I'm Vahid, and a car Megan automatic 2000 cc, 2006 model, I found very easy to start, after 20 to 40 minutes of moving or parked, LOW Battery Warning Warning smart screen appears. Which has once again turned the car off and removed. But after 20 minutes Low Battery warning is repeated again.
Renault went into labor service company, after visiting the alternator and battery, found no particular problems. I am Iranian, and I felt like operator may not have enough accurate information, not specific terms. I am facing a big problem.
If one of the general objection to fix it, please help me...

Vahid, March 2016

Hi Vahid.

If you do a Google search for your problem, there are lots of people with the same symptoms.

The cause appears to be either battery or alternator.

Get a good auto electrician to check.

I did see one suggestion that the car could be telling you the battery in the remote locking key is low.

LOts of results (and some dedicated Renault forums) here:

https://www.google.co.uk/search?q=Megane,+Model+2006+low+battery

XXX, March 2016