Standing Car Remove Battery or Not? - Renault Forums :: Independent Renault forum

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post #1 of 4 (permalink) Old 8th June 2016 Thread Starter
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Standing Car Remove Battery or Not?

Hello All,

The current project I am working on is my 2005 Laguna Estate 2.0L 16V I got it for cheap without an MOT so Im working on getting it roadworthy again.

One of the first tasks was a new battery as the original renault one was failing to hold any charge. The new battery seems to flatten itself every 6 weeks or so, I Know this is down the the power draw from the cars ECU and natural power loss of the battery. However this is doing my new 90 battery no good so I got a solar trickle charger, but found this just held the battery up for another week at max!

The battery is once again flat, I have removed it from the car to charge again! (Remembering to turn the sidelights on to help prevent any current surges on removal and re fitting). I was wondering if i should keep the battery off the car and keep it fully charged until i need to start the engine, has this been done before by anyone? Will it cause any problems with the ECU having no power other than the window positions and radio code?
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post #2 of 4 (permalink) Old 9th June 2016
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Re: Standing Car Remove Battery or Not?

Shouldn't do any harm to disconnect it while the car is standing.

You don't want to keep on flattening the new battery as this will dramatically shorten its lifespan.

Keep the battery charged while off the car, a charge every couple of weeks will do.


Please take the time to enter your vehicle details in the "What's current in your garage?" box.

To do this:
Hover over the "TOOLS" tab at the top of the page
> then in the dropdown click on "User Dashboard"
> click on "Edit Your Details" at the top Left hand side.
> scroll down to the "What's current in your garage?" box and enter your vehicle details.
> Once the details are entered scroll down to the bottom of the page and click "Save Changes"

> Done.
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post #3 of 4 (permalink) Old 9th June 2016
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Re: Standing Car Remove Battery or Not?

Is your car in a secure place, you are able to leave doors unlocked.
If yes, insert keycard, then disconnect the battery, this will stop your steering lock coming on .
Then you wont have to reconnect your battery to work on your steering, or brake system.
Also ,,,, less chance of steering lock jamming

I think, aesthetically, car design is so interesting - the dashboards, the steering wheels, and the beauty of the mechanics. I don't know how any of it works, I don't want to know,
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post #4 of 4 (permalink) Old 9th June 2016
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Re: Standing Car Remove Battery or Not?

If you have one of those cheap 24 hour timers what
I do is connect the charger to one set to come on
for a hour a day and that keeps the battery up.
Nottnoc, Mike H025 and ours2012 like this.

Who would design a vehicle that falls over when you stop?

If you find a fix for your problem please let us know it will help others.
Ralph Nr Fleetwood NW UK.
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Mike H025 (9th June 2016)

battery , car , remove , standing

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